How to fix this?

UPDATE `forums_forums` forums_forums SET `parent_id`='-1' WHERE parent_id=0
IPS\Db\Exception: Table 'invision.forums_forums' doesn't exist (1146)
#0 /var/www/html/system/Db/Db.php(1161): IPS\_Db->preparedQuery()
#1 /var/www/html/applications/forums/sources/Forum/Forum.php(661): IPS\_Db->update()
#2 /var/www/html/system/Node/Controller.php(104): IPS\forums\_Forum::roots()
#3 /var/www/html/system/Helpers/Tree/Tree.php(130): IPS\Node\_Controller->_getRoots()
#4 /var/www/html/system/Node/Controller.php(92): IPS\Helpers\Tree\_Tree->__toString()
#5 /var/www/html/system/Dispatcher/Controller.php(101): IPS\Node\_Controller->manage()
#6 /var/www/html/system/Node/Controller.php(62): IPS\Dispatcher\_Controller->execute()
#7 /var/www/html/applications/forums/modules/admin/forums/forums.php(44): IPS\Node\_Controller->execute()
#8 /var/www/html/system/Dispatcher/Dispatcher.php(152): IPS\forums\modules\admin\forums\_forums->execute()
#9 /var/www/html/admin/index.php(14): IPS\_Dispatcher->run()
#10 {main}

I'm with the same problem. I downloaded the last from @xuromi release.

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A print of the problem here https://prnt.sc/uvubyi

Before updating you should read the official info. many addons are not compatible with the new version. before updating, check this, because I tried it 2 months ago, and the forum was corrupt.

Which version is having problems?

It look like a database problem. Try to CARO (check-analize-repair-optimize) the database and run again the update