Is this WPA2 Password uncrackable?

[Mem5]

Your problem is not about the lenght of mask, but "Time.Estimated...: Thu Aug 20 05:19:43 2020 (46696 years, 52 days)"
Cracking WPA is slow. If you ask for 12 chars (lower-upper-digits) it will take 46696 years => good luck.
Solution ? Buy more graphic cards and/or reduce the mask.