I don't see openvpn-openssl package in the 1.5.0a repo:
https://librecmc.org/librecmc/downloads/snapshots/v1.5.0a/packages/mips_24kc/base/
I don't see openvpn-openssl package in the 1.5.0a repo:
https://librecmc.org/librecmc/downloads/snapshots/v1.5.0a/packages/mips_24kc/base/