my laptop crashed causing corrupted cache or some sorts and unserialize caused an error in lime survey.  I could not open any surveysunserialize(): Error at offsetlooking at the stack trace in CCache.phpframework->caching->CCache.php on line 108

• I removed the $value = unserialize($value)
• I let $value = $value
• logged back in and it worked.
• I put unserialized function back after it past the first time and everything is fine now