Splynx QuickBooks Addon: Connect Error

Is there a problem with the splynx addon for quickbooks online? I followed the instructions, when I click the connect button as shown below, I get an error, as shown in the second image. Also, I can’t find the quickbooks addon in the appcenter…

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Did you try to reach support on support@splynx.com ?

Looks like some error with addon configuration.

Please contact support if issue still not solved.

Sorry for the late reply. Will email support ASAP