Under the settings it is linked to archives. So, click journal administration → Settings → Website → Navigation Menus → Navigation menu items → Archives → Edit → link to → Archives → Save.
When the page is blank usually it is very useful to check php error log. please check php error log.
But, as far as I know the page Archives should work normally by default and it is not needed to libnk it to anything as you have done.
However, please check php error log and post it here.
PHP Warning: mktime(): It is not safe to rely on the system’s timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone ‘UTC’ for now, but please set date.timezone to select your timezone. in /home/www/issa.africa/lib/pkp/lib/adodb/adodb-time.inc.php on line 1073, referer: http://italianstudiesinsa.org/index.php/issa/management/settings/website
[Tue Feb 13 15:13:30 2018] [error] [client 192.143.207.239] PHP Warning: mktime(): It is not safe to rely on the system’s timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone ‘UTC’ for now, but please set date.timezone to select your timezone. in /home/www/issa.africa/lib/pkp/lib/adodb/adodb-time.inc.php on line 1073
Did you find something ion php error log that shows fatal error? I have had blank page in article view and I noticed that one plugin was making problem. I turned it off and blank page disappeared and article view was displayed properly.
You could try adding a line like error_log("Code reaches this point before error", 0); inside that handler starting from the first row and then moving that extra line onward to determine where the code gets broken.
But still there is something peculiar in your error settings if you are only seeing a blank page.
It is probably /home/www/issa.africa/pages/issue/IssueHandler.inc.php (the 30 folder you have is a test of some sort?)
If you go to OJS dashboard => Administration => System Information => Extended PHP Information then what are your values for display_errors, log_errors, error_log and error_reporting?