Error in customer frontend

[katerina]

Hi,

we didn't use customer frontend until now. But I know it worked when I first installed otrs maybe 2 years ago.

Now we want to use customer.pl link for users, but when user wants to create new ticket, he/she could see that there is an error and in details there is

document.getElementById(...) is null

nonetext@http://intranet.bohnice.cz/otrs/custome ... essage:304
nonetext()@http://intranet.bohnice.cz/otrs/custome ... essage:319
TargetNS.Ready/<@http://intranet.bohnice.cz/otrs-web/js/ ... fa.js:1252
x.Callbacks/c@http://intranet.bohnice.cz/otrs-web/js/ ... 182fa.js:2
x.Callbacks/p.fireWith@http://intranet.bohnice.cz/otrs-web/js/ ... 182fa.js:2
.ready@http://intranet.bohnice.cz/otrs-web/js/ ... 182fa.js:2
q@http://intranet.bohnice.cz/otrs-web/js/ ... 182fa.js:2

The error message could be seen again when customer tries to select a queue field in the form, but the ticket could be saved.

I tried to upgrade from 3.3.4 to 3.3.7 but it doesn't solve this problem and there was other problem, so I downgraded to 3.3.4 again
I tried to delete cache, but it doesn't help.

In otrs system log there is nothing and in http error log I see nothing, too.

I do not remember whether I had done any customisation of this frontend before I upgraded from previous versions, but I think not.
Please, can you tell me how to troubleshoot?
Thanx a lot

[crythias]

nonetext = you customized the interface to hide dynamic fields ... If upgrading doesn't fix the problem, it might be because of different customer themes because stock HTML/Standard .dtls won't have this issue.

[katerina]

Thank you very much, the problem is solved by switching to standard theme