Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /customers/f/0/0/ on line 1142 Strict Standards: Non-static method Participad::instance() should not be called statically in /customers/f/0/0/ on line 93 Fatal error: Uncaught exception 'InvalidArgumentException' with message '[] is not a valid URL' in /customers/f/0/0/ Stack trace: #0 /customers/f/0/0/ EtherpadLiteClient->__construct('', '') #1 /customers/f/0/0/ Participad_Client::instance() #2 /customers/f/0/0/ participad_client() #3 /customers/f/0/0/ participad_is_installed_correctly() #4 /customers/f/0/0/ Participad_Integration->init() #5 /customers/f/0/0/ in /customers/f/0/0/ on line 21