Found out the issue. it was pycryptodomex lib. Version 3.12.0 crashes on armv6 "Illegal instruction" on armv6l / RaspberryPI Zero · Issue #585 · Legrandin/pycryptodome · GitHub
Found out the issue. it was pycryptodomex lib. Version 3.12.0 crashes on armv6 "Illegal instruction" on armv6l / RaspberryPI Zero · Issue #585 · Legrandin/pycryptodome · GitHub