Upgrade to 2.0.20 problems

[dsidir]

Hello. The whole problem starts when I tried to do my site multilingual using joomfish. Having installed Greek as a default language and English as well, the first issue I found was that at Virtuemart configuration could not see both language but only english even if I had installed greek language for virtuemart. So, I thought maybe if I install joomfish I can fix the problem. However, even after installing joomfish the problem still remained and could not use joomfish because I couldnt see any of the vm products. Finally I uninstalled joomfish. After some reading I thought that upgrading the virtuemart from 2.0.8c that I had to the last version maybe will fix some problems. So I did that. Now finally I have much more problems.

1. The VM link does not show on Components back end (I read the possible solutions). I checked the database tables ..id, etc  and everything seems to be fine. However the problem exists
2. The price of the products dissapear as well. The usergroup at databse seem to be "null". However I cannot open the products from the control panel because anytime I do that I get an internal server error (the site is live)
3. Still cant see at VM configuration all the available languages but only ENGLISH.

I would really need some ideas or any possible solutions.

[PRO]

do you have a backup?

[jenkinhill]

Best not to use Joomfish. Joomla 2.5 / VirtueMart 2 is natively multilingual.

[dsidir]

I didnt do a back
I prefer joomfish because it is more easy I think to use

[Milbo]

After some reading I thought that upgrading the virtuemart from 2.0.8c that I had to the last version maybe will fix some problems. So I did that. Now finally I have much more problems.

the step from 2.0.8c to 2.0.20b is not really small. We will solve it.

1. The VM link does not show on Components back end (I read the possible solutions). I checked the database tables ..id, etc  and everything seems to be fine. However the problem exists

This is a strange joomla 2.5 problem which sometimes appear and sometimes not. We would be very happy to find a robust solution. I will add a repair for the post flight. Will be in the 2.0.21d. The problems you have are due the update in version 2.0.14.

2. The price of the products dissapear as well. The usergroup at database seem to be "null". However I cannot open the products from the control panel because anytime I do that I get an internal server error (the site is live)

This is due the multiprices in vm2, which can be depended by shoppergroups. When you see null there or nothing, or 0 everything is good. it means it is for ALL shoppergroups, which was assumingly your case before. The internal server error is strange. vmdebug enabled? What says the internal server error? It may help to go to the tools again and to run the table updater.

3. Still cant see at VM configuration all the available languages but only ENGLISH.

Hmm, vm should see the languages which you have installed in joomla. So what do you have installed there?