Issue with free license renewal process

Issue with free license renewal process

Hello
I want to extend my free SDP MSP license for another year , unfortunately automatic license generator is not working for me - renew form is giving me a message "Error occurred please contact application owner."

I have contacted ManageEngine support, they have generated license for me but when I'm trying to apply new license on portal  a message occurs: "Please apply a proper license file"

Can you help me with that issues?

Best regards

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