The error seems to be happening more frequently now. Every time it happens we are unable to access the WordPress admin page. Also each error has a different line number. The following two happened this week
Error Details
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An error of type E_COMPILE_ERROR was caused in line 18 of the file \wp-content\plugins\post-smtp\Postman\PostmanAdminController.php. Error message: require_once(): Failed opening required ‘PostmanViewController.php’ (include_path=’.;C:\php\pear’)
Error Details
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An error of type E_COMPILE_ERROR was caused in line 12 of the file \wp-content\plugins\post-smtp\Postman\PostmanAdminController.php. Error message: require_once(): Failed opening required ‘Postman-Connectivity-Test/Postman-PortTest.php’ (include_path=’.;C:\php\pear’)