[OJS 3.2.1.1] Blank, white page ("Search" function)

Thank you for your help.
Unfortunately, after changing the setting to “collation = utf8_polish_ci”, the same error still appears.

The only thing that has changed is the display of the sign in the message.
Previously it was ‘=’ and ‘issueId’
and now it’s ‘=’ and ‘issueId’.

Regards
Wojtek

Edit:

I see that in my post the old and new sign ’ was shown the same.
I will show it in the picture:

apostrofy