phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table 'phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c12e79d9a0b11dec5c5cd7f86c301b26', -1, 1555805544, 1555805544, '0354b670', -4, 0, 0)

Line : 187
File : sessions.php