Internal server error

update `chat` set `token` = '' where `md5` = 'ahpq0smdt660flvds9njmkd4kl' 

#0 /var/www/html/kti.sova.ws/Sova/Lib/Mysql.php(114): PDOStatement->execute()
#1 /var/www/html/kti.sova.ws/Sova/modules/chat.php(22): Sova\Lib\Mysql->query('update `chat` s...')
#2 [internal function]: Sova\chat->index()
#3 /var/www/html/kti.sova.ws/Sova/Lib/Module.php(54): call_user_func(Array)
#4 /var/www/html/kti.sova.ws/Sova/Lib/Module.php(30): Sova\Lib\Module->navigate()
#5 /var/www/html/kti.sova.ws/Sova/modules/chat.php(169): Sova\Lib\Module->__construct('chat.html')
#6 /var/www/html/kti.sova.ws/main.php(43): include_once('/var/www/html/k...')
#7 {main}

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'sova_kti.chat' doesn't exist


Fatal error: Uncaught Error: Call to a member function close() on null in /var/www/html/kti.sova.ws/Sova/Lib/Mysql.php:131 Stack trace: #0 /var/www/html/kti.sova.ws/Sova/modules/chat.php(22): Sova\Lib\Mysql->query('update `chat` s...') #1 [internal function]: Sova\chat->index() #2 /var/www/html/kti.sova.ws/Sova/Lib/Module.php(54): call_user_func(Array) #3 /var/www/html/kti.sova.ws/Sova/Lib/Module.php(30): Sova\Lib\Module->navigate() #4 /var/www/html/kti.sova.ws/Sova/modules/chat.php(169): Sova\Lib\Module->__construct('chat.html') #5 /var/www/html/kti.sova.ws/main.php(43): include_once('/var/www/html/k...') #6 {main} thrown in /var/www/html/kti.sova.ws/Sova/Lib/Mysql.php on line 131