License error message

[TF_12566030]

I get this message when i try to configurate my floating license "Failed to configure license for PTC Mathcad Prime 10.0.0.0: '.', hexadecimal value 0x00, is an invalid character. Line 6, position 1" and i dont know what to do? It does not matter what i type, i just comes with that message 

[VladimirN]

Same issue - "Help! How do I configure the license?": https://community.ptc.com/t5/Mathcad/Help-How-do-I-configure-the-license/td-p/424337