Why error log?

I have problem in error log:

1) http://www.mojsajt.net/index.php?action=viewErrorLog;desc
8: Undefined index: ad_management
Datoteka: /public_html/Sources/Subs.php
Linija: 2742


2) http://www.mojsajt.net/index.php?action=viewErrorLog;desc
Ne mogu da učitam jezičku datoteku 'Ads.serbian-utf8-lat'.


Some ideas or some answer?

re: Why error log?

Some ideas on what? You haven't asked a question. Also, that stuff you posted could mean absolutely anything. Please be a lot more descriptive when asking a question. Post the code that causes the error using [code] tags.

Please read the posting guidelines particularly the part on How To Ask A Question.

Moderator.

re: Why error log?

If I had to hazard a guess, I'd say: you're using an array somewhere and you call the 'ad_management' index of that array. But said array does not contain said index. Ergo, you are receiving an error.

re: Why error log?

I have SMF forum. Recent install is "ad managment" mode. "Ad managment" functional well but when modify forum in/on serbian language, "ad managment" no exist as option. Maybe is it reason appearance that errors? Else, forum has stable function.
Which code me need for throw into or lack in array? help me?

re: Why error log?

I know nothing of the structure of that forum, nor can I really understand you too well.

I suggest asking on SMFADs forum..