Thanks for your reply, the problem is: most part of liveries are downloadble from common list in A310 Liveries section, but if i search them through search function some of them give those error ( those liveries for A310 ofcourse )
For some reason I'm not able to download some liveries from ini builds team. It is said: You must be a member of the iniBuilds Forum to download this file.
P.s I'm trying to download liveries for A310 and a I have already purchased it.