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[RubixVi]

Error Codes:

Laminas\HttpHandlerRunner\Exception\EmitterException: Output has been emitted previously; cannot emit response in /home/rubixstu/<domain>/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:24
Stack trace:
#0 /home/rubixstu/<domain>/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(40): Laminas\HttpHandlerRunner\Exception\EmitterException::forOutputSent()
#1 /home/rubixstu/<domain>/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(27): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->assertNoPreviousOutput()
#2 /home/rubixstu/<domain>/clientarea.php(0): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit(Object(WHMCS\ClientArea))
#3 {main}

[WHMCS John]

Hi @RubixVi,

This error has been observed in after-rmarket modules which contain erroneous carriage returns or other coding mistakes.

Could you please ensure there are no customisations present on your installation as these can often change the way WHMCS operates.
These are typically located in the /includes/hooks and /modules/ directories.

Once the issue is resolved you can add them back one-by-one until the problem begins again - at which point you have identified the troublesome customisation and can contact the vendor directly for assistance resolving the problem in their code.

[angelettif]

I removed everything and still having the error on addfunds page