The exact same error message happens for me also and even after deleting and then installing the v1.6.8a. the error message is now line 103 rather than 106. Any solutions?
Fatal error: Call to undefined function wp_slash() in /websites/123reg/LinuxPackage22/bu/il/dm/buildmomentum.com/public_html/wp-content/plugins/postman-smtp/Postman/Postman-Email-Log/PostmanEmailLogService.php on line 103
