Piwiwk does not work anymore

Support & Bugs
1

There is an error. Please report the message (Piwik 2.8.1) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).

Warning: preg_match(): Unknown modifier ‘a’ in /homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php on line 270

Backtrace -->

#0 Piwik\Error::errorHandler(…) called at [:]
#1 preg_match(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:270]
#2 Piwik\Url::isValidHost(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:326]
#3 Piwik\Url::getHost(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:372]
#4 Piwik\Url::getCurrentHost(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:102]
#5 Piwik\Url::getCurrentUrlWithoutFileName(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/SettingsPiwik.php:170]
#6 Piwik\SettingsPiwik::getPiwikUrl(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/FrontController.php:404]
#7 Piwik\FrontController->init(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/dispatch.php:33]
#8 require_once(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/index.php:46]

here is an error. Please report the message (Piwik 2.8.1) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).

Warning: preg_match(): Unknown modifier ‘a’ in /homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php on line 270

Backtrace -->

#0 Piwik\Error::errorHandler(…) called at [:]
#1 preg_match(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:270]
#2 Piwik\Url::isValidHost(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:326]
#3 Piwik\Url::getHost(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:372]
#4 Piwik\Url::getCurrentHost(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/Url.php:68]
#5 Piwik\Url::getCurrentUrl(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/FrontController.php:88]
#6 Piwik\FrontController->dispatch(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/core/dispatch.php:34]
#7 require_once(…) called at [/homepages/28/d314552651/htdocs/cmsanalytic/index.php:46]

2

When does that error occur. Did it occur right after the “autoupdate”?
Maybe reuploading the files of Piwik might help.

3

Hi there, if you can reproduce this error another time, please create an issue in github: Issues · matomo-org/piwik · GitHub

4

it did apear after i changed the trustes directory or url