An Error occurred while handling another error:
Error: Class "yii\web\HeaderCollection" not found in /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/Response.php:322
Stack trace:
#0 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/HtmlResponseFormatter.php(37): yii\web\Response->getHeaders()
#1 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/Response.php(1070): yii\web\HtmlResponseFormatter->format(Object(craft\web\Response))
#2 /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/Response.php(271): yii\web\Response->prepare()
#3 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/Response.php(337): craft\web\Response->prepare()
#4 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/ErrorHandler.php(136): yii\web\Response->send()
#5 /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/ErrorHandler.php(147): yii\web\ErrorHandler->renderException(Object(yii\base\ErrorException))
#6 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/base/ErrorHandler.php(135): craft\web\ErrorHandler->renderException(Object(yii\base\ErrorException))
#7 /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/ErrorHandler.php(63): yii\base\ErrorHandler->handleException(Object(yii\base\ErrorException))
#8 [internal function]: craft\web\ErrorHandler->handleException(Object(yii\base\ErrorException))
#9 {main}
Previous exception:
yii\base\ErrorException: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/ErrorHandler.php:179
Stack trace:
#0 /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/ErrorHandler.php(76): yii\base\ErrorHandler->handleError(8192, 'strpos(): Passi...', '/home/danieley/...', 179)
#1 [internal function]: craft\web\ErrorHandler->handleError(8192, 'strpos(): Passi...', '/home/danieley/...', 179)
#2 /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/ErrorHandler.php(179): strpos(NULL, 'compiled_templa...')
#3 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/ErrorHandler.php(346): craft\web\ErrorHandler->renderCallStackItem(NULL, NULL, 'yii\\base\\ErrorH...', 'handleFatalErro...', Array, 2)
#4 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/views/errorHandler/exception.php(441): yii\web\ErrorHandler->renderCallStack(Object(yii\base\ErrorException))
#5 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/ErrorHandler.php(262): require('/home/danieley/...')
#6 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/web/ErrorHandler.php(126): yii\web\ErrorHandler->renderFile('@yii/views/erro...', Array)
#7 /home/danieley/public_html/backend.dev.prolog.digital/vendor/craftcms/cms/src/web/ErrorHandler.php(147): yii\web\ErrorHandler->renderException(Object(yii\base\ErrorException))
#8 /home/danieley/public_html/backend.dev.prolog.digital/vendor/yiisoft/yii2/base/ErrorHandler.php(288): craft\web\ErrorHandler->renderException(Object(yii\base\ErrorException))
#9 [internal function]: yii\base\ErrorHandler->handleFatalError()
#10 {main}