phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('fc9c73ecee19978c73e179cba2f39f3f', -1, 1508594812, 1508594812, '36a269f1', 2, 0, 0)

Line : 187
File : sessions.php