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 ('245ca878d2e769c034969f4a304471f4', -1, 1519537703, 1519537703, '36dd8343', -9, 0, 0)

Line : 187
File : sessions.php