Im still using zPermissions 1.2a in my 1.8.8 server. Because my server is not in online-mode and zPermissions 1.3 wants online uuids. Im still using Vault 1.4.1 in my 1.8.8 spigot server. I want update Vault but Vault 1.5.6 does not support zPermissions. Can you add zPermissions 1.2 support again?

zPermissions connector was removed from Vault because zPermissions provides it's own connector that handles everything properly. If it is non-functional for the 1.3 version you will need to bring that up with the Author or have someone patch it as it was the latest version already:

https://github.com/ZerothAngel/zPermissions/blob/master/src/main/java/org/tyrannyofheaven/bukkit/zPermissions/vault/VaultPermissionBridge.java