Warning: Declaration of ArrayObject::count() should be compatible with ArrayObject::uksort($cmp_function) in C:\Moodle31\server\moodle\cache\lib.php on line 181

Fatal error: Declaration of ArrayObject::X() must be compatible with Serializable::unserialize($serialized) in C:\Moodle31\server\moodle\cache\lib.php on line 181