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 ('d0bf7dd05d940351c064f39185d8809c', -1, 1519417506, 1519417506, '36a74b1c', -11, 0, 0)

Line : 187
File : sessions.php