phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'efa8b4a2a59aec2cde16a437e326d116' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('efa8b4a2a59aec2cde16a437e326d116', -1, 1770819184, 1770819184, 'd849d876', 1, 0, 0)

Line : 187
File : sessions.php