[Bug] Tax is NaN%

[AdamB2023]

v0.49.7
https://dexscreener.com/ethereum/0x82fcda725005d82760a75a5be173c4da922d2b33
https://etherscan.io/token/0xfd128e3513a704b6e747ffb723eea79bdae1e3a0
https://etherscan.io/address/0xfd128e3513a704b6e747ffb723eea79bdae1e3a0

Time is in UTC like Etherscan.

02-17 18:43:03.433  6427 GET CONTRACT --------- PrimeFi contract is open source --> we will be able to offer you good protection
PrimeFi      Price (6427): 0.000000039678 | Sell Tax 4% < Max Tax (60%) | Price after Tax 0.000000038090640974
PrimeFi      Price (6427): 0.000000037325 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000036204772022
PrimeFi      Price (6427): 0.000000040234 | Sell Tax 4% < Max Tax (60%) | Price after Tax 0.000000038624719703
PrimeFi      Price (6427): 0.000000038276 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000037127465772
PrimeFi      Price (6427): 0.000000038584 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000037426373481
PrimeFi      Price (6427): 0.000000043421 | Sell Tax 4% < Max Tax (60%) | Price after Tax 0.000000041684356416
PrimeFi      Price (6427): 0.000000042651 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000041371749584
PrimeFi      Price (6427): 0.000000044017 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000042696744487
PrimeFi      Price (6427): 0.000000042744 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000041461976610
PrimeFi      Price (6427): 0.000000042062 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000040800272651
PrimeFi      Price (6427): 0.000000042261 | Sell Tax 3% < Max Tax (60%) | Price after Tax 0.000000040992981358
PrimeFi      Price (6427): 0.000000038201 | Sell Tax NaN% < Max Tax (60%) | Price after Tax NaN
PrimeFi      Price (6427): 0.000000038509 | Sell Tax NaN% < Max Tax (60%) | Price after Tax NaN
PrimeFi      Price (6427): 0.000000040184 | Sell Tax NaN% < Max Tax (60%) | Price after Tax NaN
-- SWAP DETECTED -----------------------------------------------
02-17 18:48:23.4823

[AdamB2023]

It's unsellable after that NaN%, happened to me third time.
Could it be detected?
I can't find related TX.