Ojs webserver is not recognizing index.php

I saw in metric/error from cpanel:

2021-05-29 16:08:57.063578 [INFO] [53018] [51.159.94.134:46783#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:57.063512 [INFO] [53018] [51.159.94.134:46783#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:55.280076 [INFO] [53018] [51.159.94.134:43084#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:55.280030 [INFO] [53018] [51.159.94.134:43084#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:52.127850 [INFO] [53020] [51.159.94.134:40777#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:52.127814 [INFO] [53020] [51.159.94.134:40777#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:48.785551 [INFO] [53020] [51.159.94.134:46515#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:48.785515 [INFO] [53020] [51.159.94.134:46515#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:44.848638 [INFO] [53018] [51.159.94.134:33999#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:44.848589 [INFO] [53018] [51.159.94.134:33999#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:41.938637 [INFO] [53020] [51.159.94.134:46093#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:41.938614 [INFO] [53020] [51.159.94.134:46093#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:39.642695 [INFO] [53020] [51.159.94.134:37037#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:39.642673 [INFO] [53020] [51.159.94.134:37037#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:37.690583 [INFO] [53020] [51.159.94.134:38411#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:37.690554 [INFO] [53020] [51.159.94.134:38411#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:34.483086 [INFO] [53020] [51.159.94.134:37737#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:34.483064 [INFO] [53020] [51.159.94.134:37737#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:29.284710 [INFO] [53020] [51.159.94.134:39873#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:29.284678 [INFO] [53020] [51.159.94.134:39873#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:25.146417 [INFO] [53018] [51.159.94.134:45217#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:25.146388 [INFO] [53018] [51.159.94.134:45217#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:21.173894 [INFO] [53020] [51.159.94.134:40967#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:21.173857 [INFO] [53020] [51.159.94.134:40967#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:17.836804 [INFO] [53018] [51.159.94.134:36706#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:17.836770 [INFO] [53018] [51.159.94.134:36706#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:16.147143 [INFO] [53020] [66.249.69.99:47243#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:16.147107 [INFO] [53020] [66.249.69.99:47243#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:14.007948 [INFO] [53020] [51.159.94.134:41231#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:14.007893 [INFO] [53020] [51.159.94.134:41231#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:09.943132 [INFO] [53018] [51.159.94.134:33333#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:09.943086 [INFO] [53018] [51.159.94.134:33333#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:07.840590 [INFO] [53018] [51.159.94.134:39105#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:07.840560 [INFO] [53018] [51.159.94.134:39105#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:08:03.943804 [INFO] [53020] [51.159.94.134:36435#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:08:03.943774 [INFO] [53020] [51.159.94.134:36435#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:58.683445 [INFO] [53018] [51.159.94.134:33685#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:58.683422 [INFO] [53018] [51.159.94.134:33685#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:55.160477 [INFO] [53018] [51.159.94.134:36041#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:55.160455 [INFO] [53018] [51.159.94.134:36041#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:51.563134 [INFO] [53018] [51.159.94.134:36248#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:51.563099 [INFO] [53018] [51.159.94.134:36248#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:46.222938 [INFO] [53018] [51.159.94.134:39730#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:46.222889 [INFO] [53018] [51.159.94.134:39730#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:41.413011 [INFO] [53018] [51.159.94.134:45243#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:41.412980 [INFO] [53018] [51.159.94.134:45243#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:38.142411 [INFO] [53020] [51.159.94.134:33369#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:38.142374 [INFO] [53020] [51.159.94.134:33369#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:35.088765 [INFO] [53020] [51.159.94.134:35187#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:35.088731 [INFO] [53020] [51.159.94.134:35187#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:30.751150 [INFO] [53020] [51.159.94.134:37606#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:30.751135 [INFO] [53020] [51.159.94.134:37606#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:23.896331 [INFO] [53018] [51.159.94.134:35897#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:23.896297 [INFO] [53018] [51.159.94.134:35897#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:21.274114 [INFO] [53018] [51.159.94.134:37611#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:21.274074 [INFO] [53018] [51.159.94.134:37611#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:17.354818 [INFO] [53018] [51.159.94.134:44637#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:17.354781 [INFO] [53018] [51.159.94.134:44637#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:12.605738 [INFO] [53020] [51.159.94.134:37726#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:12.605713 [INFO] [53020] [51.159.94.134:37726#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:06.805805 [INFO] [53018] [51.159.94.134:43909#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:06.805771 [INFO] [53018] [51.159.94.134:43909#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:07:02.347791 [INFO] [53020] [51.159.94.134:35517#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:07:02.347768 [INFO] [53020] [51.159.94.134:35517#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:58.239118 [INFO] [53018] [51.159.94.134:44152#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:58.239070 [INFO] [53018] [51.159.94.134:44152#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:53.688968 [INFO] [53020] [51.159.94.134:33697#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:53.688947 [INFO] [53020] [51.159.94.134:33697#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:48.958841 [INFO] [53020] [51.159.94.134:42292#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:48.958805 [INFO] [53020] [51.159.94.134:42292#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:44.353518 [INFO] [53020] [51.159.94.134:36844#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:44.353483 [INFO] [53020] [51.159.94.134:36844#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:40.049495 [INFO] [53020] [51.159.94.134:35686#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:40.049466 [INFO] [53020] [51.159.94.134:35686#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:36.429096 [INFO] [53018] [51.159.94.134:34855#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:36.429074 [INFO] [53018] [51.159.94.134:34855#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:32.717899 [INFO] [53018] [51.159.94.134:45497#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:32.717865 [INFO] [53018] [51.159.94.134:45497#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:28.368702 [INFO] [53018] [51.159.94.134:38878#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:28.368663 [INFO] [53018] [51.159.94.134:38878#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:22.960770 [INFO] [53018] [51.159.94.134:42105#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:22.960740 [INFO] [53018] [51.159.94.134:42105#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:06:19.539308 [INFO] [53020] [51.159.94.134:38900#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:06:19.539287 [INFO] [53020] [51.159.94.134:38900#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:01:58.360154 [INFO] [53018] [34.141.161.89:35840#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:01:58.360090 [INFO] [53018] [34.141.161.89:35840#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:01:58.134407 [INFO] [53020] [34.141.161.89:35826#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:01:58.134376 [INFO] [53020] [34.141.161.89:35826#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 16:01:58.108248 [INFO] [53020] [34.141.161.89:35822#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 16:01:58.108210 [INFO] [53020] [34.141.161.89:35822#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:31:11.223903 [INFO] [43081] [106.11.158.82:13069#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:31:11.223866 [INFO] [43081] [106.11.158.82:13069#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:14:18.173461 [INFO] [43081] [94.23.250.140:36854#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:14:18.173425 [INFO] [43081] [94.23.250.140:36854#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:14:17.543346 [INFO] [43082] [94.23.250.140:36620#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:14:17.543316 [INFO] [43082] [94.23.250.140:36620#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:14:16.896307 [INFO] [43081] [94.23.250.140:36380#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:14:16.896282 [INFO] [43081] [94.23.250.140:36380#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:14:16.238061 [INFO] [43081] [94.23.250.140:36138#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:14:16.238017 [INFO] [43081] [94.23.250.140:36138#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:14:15.598685 [INFO] [43082] [94.23.250.140:35912#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:14:15.598634 [INFO] [43082] [94.23.250.140:35912#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]
2021-05-29 15:14:14.833163 [INFO] [43082] [94.23.250.140:35630#APVH_cincader.org:443] File not found [/home/cincader/public_html/404.shtml]
2021-05-29 15:14:14.833094 [INFO] [43082] [94.23.250.140:35630#APVH_cincader.org:443] File not found [/home/cincader/public_html/index.php]

Can I add any information in: .htaccess or index.php?
Could you help me to get a solution?

Information:
ojs version 3.3.0.6 downloaded by softaculous.
VersiĆ³n de PHP: 7.3.28
webpage=https://journals.cincader.org/