Steps to reproduce the issue

Enable the redirect plugin and then try to open com_redirect

Expected result

component opens

Actual result

Notice: Undefined variable: previousExceptionHandler in C:\Apache24\htdocs\cms4\plugins\system\redirect\redirect.php on line 112

Fatal error: Uncaught Error: Function name must be a string in C:\Apache24\htdocs\cms4\plugins\system\redirect\redirect.php:112 Stack trace: #0 C:\Apache24\htdocs\cms4\plugins\system\redirect\redirect.php(91): PlgSystemRedirect::doErrorHandling(Object(Error)) #1 [internal function]: PlgSystemRedirect::handleException(Object(Error)) #2 {main} thrown in C:\Apache24\htdocs\cms4\plugins\system\redirect\redirect.php on line 112

Additional comments

With the plugin disabled the component loads ok