Lost my BATs after restore (Linux Ubuntu)

After reinstallation of my Linux Ubuntu OS, i restored my wallet with the backup I made 2 days earlier. It said the process worked well but instead of about 180 BATs I’ve only got 31.6 BATs. :confused:
I tried the other way to restore it (with phrase words) but still got 31.6 BATs.
Could you please tell me how to recover my 180 BATs ?
Thank you in advance.
Best regards.