dotcomUNDERGROUND Posted April 1, 2020 Share Posted April 1, 2020 My WHMCS is suddenly giving 503 Service Unavailable error. Both the admin and front end. I have not made any changes to WHMCS or the server. I created a test php file and that loads fine. Its on a cpanel server running cloudlinux. There is no LVE error for the site. Any suggestions on how I can troubleshoot the issue? 0 Quote Link to comment Share on other sites More sharing options...
Damo Posted April 1, 2020 Share Posted April 1, 2020 A 503 is resource limits and would be CL. There must be something showing as a fault in CL. What are the limits set on this account? 0 Quote Link to comment Share on other sites More sharing options...
dotcomUNDERGROUND Posted April 1, 2020 Author Share Posted April 1, 2020 44 minutes ago, Damo said: A 503 is resource limits and would be CL. There must be something showing as a fault in CL. What are the limits set on this account? Thank you for your reply. I have checked the CL history and it does not show any fault. I have also updated cage fs structure and tried applying the "do not limit" setting. My limits are: SPEED 600% VMEM 0 PMEM 10G IO 10MB/s IOPS 10240 EP 500 NPROC 1000 Note that I can run a newly created php page with phpinfo() without any issue. 0 Quote Link to comment Share on other sites More sharing options...
dotcomUNDERGROUND Posted April 1, 2020 Author Share Posted April 1, 2020 I tried switching off php-fpm for the domain and its working fine now. Any reason for this behavior? Specially when I have not changed any setting or made any upgrade? 0 Quote Link to comment Share on other sites More sharing options...
Xhale1 Posted April 2, 2020 Share Posted April 2, 2020 Same issue here. No CloudLinux, just cPanel and LiteSpeed. No server changes and then today I'm getting a 503 error. I think it's related to an update to EasyApache 4? 0 Quote Link to comment Share on other sites More sharing options...
nguoiveday Posted July 10, 2020 Share Posted July 10, 2020 After successfully installing the version whmcs-v7.9.1, you can access the admin page but the external homepage cannot access and report an error: 503 Service Unavailable The server is temporarily busy, try again later! Thanks to you for guidance on how to fix it. Thank you very much! 0 Quote Link to comment Share on other sites More sharing options...
Mil1ler Posted August 18, 2020 Share Posted August 18, 2020 I am also having this issue, does someone have any solution for this? kindly share your views, thanks in advance. 0 Quote Link to comment Share on other sites More sharing options...
TorabRamin Posted August 26, 2020 Share Posted August 26, 2020 I'm facing same issue. 😞 0 Quote Link to comment Share on other sites More sharing options...
GDW Posted October 3, 2020 Share Posted October 3, 2020 Same problem with sudden 503 error when accessing the login page for WHMCS. Please help! 0 Quote Link to comment Share on other sites More sharing options...
Codelight.in Posted September 19, 2024 Share Posted September 19, 2024 i also , faceing same problem on php 8.1 and it works fine on 7.4 , i try alot of thing but didn't work. t last i unintall my php 8.1 and reintall it again, wow , it worked, 0 Quote Link to comment Share on other sites More sharing options...
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