I understand you have enabled the debug and can't see any errors.
The error "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1" isn't a common Joomla error and is there because of probably a third party extension or other poorly written code.
I'd suggest you review any recent major changes that you may have made to your website?
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Error 1064 with sub category
7 months 1 week ago #8300
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