I have just installed the plugin and I cannot access the CMS tab with this exception :
FireUnion\Signature\Components\Signature and FireUnion\Signature\Traits\Signature define the same property ($vars) in the composition of FireUnion\Signature\Components\Signature. However, the definition differs and is considered incompatible. Class was composed
I have uninstalled and installed again the plugin; logged out and in again with no luck.
Thank you for your answer.