tonyquach Posted June 26, 2023 Share Posted June 26, 2023 Hi, i have change version PHP form 7.4 to PHP 8.1 and error: Fatal error: Invalid opcode 19/0/0. in /.../public_html/vendor/whmcs/whmcs-foundation/lib/Model/AbstractModel.php on line 0 Please help a stuck guy. 0 Quote Link to comment Share on other sites More sharing options...
Evolve Web Hosting Posted January 13 Share Posted January 13 @tonyquach Did you figure this out or do you still need help? The post is 6+ months old. 0 Quote Link to comment Share on other sites More sharing options...
Alex Cray Posted Tuesday at 01:46 AM Share Posted Tuesday at 01:46 AM It looks like you're encountering a fatal error related to opcode compatibility after upgrading from PHP 7.4 to PHP 8.1. Opcode 19/0/0 indicates an invalid opcode, which could be caused by outdated or incompatible code. To resolve this issue: Check the compatibility of your WHMCS version with PHP 8.1. Some older versions may not fully support the latest PHP releases. Update WHMCS to the latest version, if possible, as newer releases often include fixes and optimizations for newer PHP versions. Review any custom or third-party code, including plugins or themes, for compatibility with PHP 8.1. Ensure that all code follows best practices and is updated to support the latest PHP version. If the issue persists, consider rolling back to PHP 7.4 temporarily until a solution or patch is available from WHMCS or the community. Additionally, check the WHMCS documentation, forums, or support resources for specific guidance on upgrading to PHP 8.1 and resolving opcode-related errors. They may provide insights or fixes tailored to your situation. 0 Quote Link to comment Share on other sites More sharing options...
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