Hello,
I am a new FossBilling user. I have installed the latest version and am currently testing it.
However, when I wanted to check the availability of a domain from the customer area, I have this error message that appears systematically:
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Syntax error for "https://httpapi.com/api/domains/available.json?domain-name=opwh&tlds=net&suggest-alternative=false&auth-userid=439640&api-key=QmPIXyspJyPVckWLVOnRSu6iz0xkhFd4"
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Any idea how to fix this?
Thanks a lot for your help! 
Laurent.