domain is unavailable in client are

[elyes]

hi

i have this issue with whmcs, when i search for a domain with my local extension .tn, it shows domain is unavailable, but when i try to transfer a domain .tn domain it works fine, and i can do Domain WHOIS Lookup inside whmcs it works fine, just the domain registartion from client area doesn't work

i'm using version 8.5 and i added the code in dist.whois.json for my local whois server, but still with the same error