I join in on this pain with my IPFire v186:
Jul 4 10:14:39 fw01 openvpnserver[3111]: 79.253.176.169:50676 VERIFY ERROR: depth=0, error=CRL has expired:…
The solution at www.ipfire.org - Extended usage of CA and keys does not work, because there is no subdir openssl under /var/ipfire/ovpn.
Funbit: a OpenVPN N2N Tunnel to the same Ipfire is still working.
begging for insight / help / fix (please choose as needed ;-))
Thanks
Dirk