PBXAct with zoho CRM

we have a pbxact-40, I wants to connect zoho CRM by CRM module. my pbxact is version 10.13.66-21, and connect with zoho by URL. But the dos in wiki shows that I have to connect zohu by Auth Token:
My question is how can i upgrade my pbxact?
I use command to upgrade without sucess, the version still 10.13 version, not 14 version.
Any suggestion?

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