Phorum Database Error

Sorry, a Phorum database error occurred.
Please try again later!

Error:

Table './phorum/phorum_users' is marked as crashed and should be repaired (145): SELECT * FROM phorum_users WHERE user_id IN (36444)

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:3217
----
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}/profile.php:41
----