I updated my OJS with the help of this fix: #5626
but now i am unable to see my administrator site. Can anyone help me? i also tried to delete the cache but i am unable to see the option for the same reason. I attach an image about how the page stay

This is my server logs, the php logs doesn’t show me anything besides the “Malformed UTF-8 characters” warning but i can send them if need it
Hi @miguel.obando,
Could you include the UTF-8 related message you saw?
Regards,
Alec Smecher
Public Knowledge Project Team
[28-May-2020 20:29:27 UTC] Malformed UTF-8 characters, possibly incorrectly encoded
Hi @miguel.obando,
It’s likely that the UTF-8 message indicates the problem. I’d suggest checking your database’s default character set; see e.g. this thread: [OJS 3.2.0-3] Submissions disappeared post upgrade
You may also get more information by looking at your browser’s error console.
Regards,
Alec Smecher
Public Knowledge Project Team