Zend extension problem in IIS

I have upgraded my ojs 2.6 to 3.2.1.1. It works but I can not make any changes in dashboard and get a log error "PHP Startup: Invalid library (appears to be a Zend Extension, try loading using zend_extension=php_opcache.dll from php.ini). My Php version is 7.4.16 and zend extension is activated.
Do you have any idea about how to fix this problem or how to configure zend extension. Thanks.

I have installed new version of 0JS And then look at PHP log errors page and saw the zend extension error. But the problem was not zend extension. It was because of the wrong public directory address. When I have corrected the directory address the problem was solved.

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