Question kunena forum does not work after transfer

I stood on the site www.mathnet.am forum kunena 1.5, worked fine. The other day I asked my host to transfer my site to another server. After the transfer of all works except for the forum: mathnet.am/index.php?option=com_kunena&Itemid=30 . Prompt, please, from which it can be. Maybe it's not from a working database?

You really should install Kunena 1.7.1 (instead of using K1.5), which should at least have better error messages.

Error indicates that configuration table in database got either corrupted or doesn't exist anymore. If you can get into backend, try to save Kunena configuration.. But I really think that the easiest way to fix this issue is to install the latest version (after taking backup). It detects many issues like this during migration process and is able to fix some of those.

Thank you for your reply. I do not want to lose the old records, in addition I translated kunena 1.5 in Armenian.
Are you sure thet update the database will return to operation kunena?

I'm sorry but we don't have any advice for people who use K 1.5 except that they should upgrade to K 1.7 and that's really the only advice that we can give you. I will be transferring this topic to the K 1.5 questions category - those categories are locked - but I will leave this open for a little while longer in case someone else in the community might be able to help you.

Thanks.

Regarding to your translations; I would be happy to help you to set up Armenian translation into Transifex, where we have current translations. It basically means that about 80% of the translations are already in there (you need to review them, though), so you get a lot less strings to be updated. And you only need to translate frontend in order to be started.

Can you send your language files (zip them into here, or point to a location where they can be found)?

Old records are not lost during upgrade, which is fully automated (if there aren't any unexpected issues).

I'm not sure about anything, but the issue SEEMS to be in your #__fb_config table. If I remember it correctly, there is a way to get K1.5 site to work again if something like this happens: you just need to rename the table and create a new one with only id (=integer) field in it. Then go to backend and save configuration.

But even if you get it to work: please consider upgrading to the new version. You should also update everything else, as K1.7 doesn't always work too well with old extensions that were using Mootools 1.1.

PS. backup first!