After updating Omega2+ Firmware to 0.1.9 b149, git stopped working. (It worked earlier with 0.1.7)
The output is:
fatal: unable to access 'https://github.com/.......' : Error reading ca cert file /etc/ssl/certs/ca-certificates.crt - mbedTLS : (-0x3E00) PK - Read/write of file failed
opkg install ca-certificates didn't help