Hello All,
I hope I can get some help here, cause all other roads so far have led to a dead end. Here is a description of my problem and hopefully, someone will have seen something like this before and have a suggestion for me.
I'm having a problem with my WHMCS installation not returning any information on domain name lookups. In the "Find your new domain name" box, once you enter a domain and click search, it never returns any results. It "twirls" like it's looking, but that will go on forever. It doesn't matter if user is logged in or not. It doesn't matter if the domain name is available or unavailable, or which TLD it is. I am using the standard order form template, although I've tried others with the same results. All pricing is set for the domains and only .com is chosen for suggested domains. The Whois lookup log does however show the domain name that was ATTEMPTED to be looked up. Rarely, and I mean very rarely, the lookup will return results for either the looked up domain name or suggested names, but I've never had it do both.
In my research, I have found two things that are related to this issue. A troubleshooting document from WHMCS support titled "Troubleshooting Order Form Issues" here: http://help.whmcs.com/m/troubleshooting/l/680894-troubleshooting-order-form-issues - and the fact that when this happens an internal server error is generated to the error log in cpanel. It is an out of memory error, however there is 2GB allocated so it's not really a memory size issue.
The above WHMCS article states that the content type returned in cart.php should be "application/json" and if it is not, this is the cause of the problem. In my case when I look at that variable using inspector, the content type returned is "text/html; charset=ISO-8859-1".
The article says if that is the case, to work with your hosting provider to resolve the issue.
I have put in tickets with my reseller hosting support, but they have been unable to resolve the problem, and suggested I post here.
If anyone has seen this problem and has any suggestions as to what I can do about it, or what to check next, it would be most appreciated.
Thanks for any info anyone has,