Phorum Database Error

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Error:

Table './punkforum/phorum5_users' is marked as crashed and should be repaired (145): SELECT * FROM phorum5_users WHERE user_id IN (631, 1318, 97, 851, 481, 1116, 614, 1270, 1019, 1260, 1036, 82, 511, 1336, 493)

Backtrace:

Function phorum_database_error called at
{path to Phorum}/include/db/mysql/mysqli.php:212
----
Function phorum_db_interact called at
{path to Phorum}/include/db/mysql.php:3225
----
Function phorum_db_user_get called at
{path to Phorum}/include/api/user.php:934
----
Function phorum_api_user_get called at
{path to Phorum}/read.php:492
----