Database query failed: Out of resources when opening file '/run/mariadb/#sql-temptable-5f1-26241e-33d.MAI' (Errcode: 24 "Too many open files")

Last SQL query: SELECT p.id, p.id AS person_id, p.fname, p.lname, p.image, p.gender, p.type, p.position, p.other, tp.team_id, per.role, tp.number FROM `teams` AS t INNER JOIN team_rankings AS tr ON tr.team_id = t.id INNER JOIN competitions AS c ON c.id = tr.comp_id INNER JOIN team_players tp ON t.id = tp.team_id INNER JOIN people_event_role AS per ON per.event = c.event_id inner join people as p on p.id=tp.player_id AND tp.player_id = per.person WHERE t.id =27869 group by p.id, role order by role