Title: Need HELP
Last modified: August 30, 2016

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# Need HELP

 *  [smon](https://wordpress.org/support/users/smon/)
 * (@smon)
 * [11 years ago](https://wordpress.org/support/topic/need-help-209/)
 * I have 4 Domains at the same Server.
 * fahrzeugbeklebung.center
    fraesbuchstaben.center lichtwerbung.center
 * and they are showing only this:
    Warning: Cannot modify header information – 
   headers already sent by (output started at /kunden/107405_60311/rp-hosting/10002/
   20002/wp/wordpress/wp-content/plugins/ewww-image-optimizer/common.php:391) in/
   kunden/107405_60311/rp-hosting/10002/20002/wp/wordpress/wp-content/mu-plugins/
   domain_mapping.php on line 708
 * at the page logo-werbung.info (mainpage) is nearly everything working. but if
   i try to open the 3 href Pic and the href Fahrzeugbeschriftung and Schaufenster
   und Fassaden on the page [http://www.logo-werbung.info/startseite/beschriftung/](http://www.logo-werbung.info/startseite/beschriftung/)
   i get back this:
    [http://www.logo-werbung.info/wp-signup.php?new=logo-werbung.info](http://www.logo-werbung.info/wp-signup.php?new=logo-werbung.info)
 * maybe enybody can help me to fix the problems?!
 * THX
    Simon
 * [https://wordpress.org/plugins/wordpress-mu-domain-mapping/](https://wordpress.org/plugins/wordpress-mu-domain-mapping/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Thread Starter [smon](https://wordpress.org/support/users/smon/)
 * (@smon)
 * [11 years ago](https://wordpress.org/support/topic/need-help-209/#post-6408753)
 * No help?
 *  Plugin Author [Ron Rennick](https://wordpress.org/support/users/wpmuguru/)
 * (@wpmuguru)
 * [11 years ago](https://wordpress.org/support/topic/need-help-209/#post-6408807)
 * It looks like the ewww-image-optimizer plugin is not compatible with domain mapping.
 *  Thread Starter [smon](https://wordpress.org/support/users/smon/)
 * (@smon)
 * [11 years ago](https://wordpress.org/support/topic/need-help-209/#post-6408818)
 * Seems so.
 * When i delete this Plug the page shut down.
 *  Plugin Author [Ron Rennick](https://wordpress.org/support/users/wpmuguru/)
 * (@wpmuguru)
 * [10 years, 12 months ago](https://wordpress.org/support/topic/need-help-209/#post-6408843)
 * I’m not familiar with the image optimization plugin so I’m not going to be able
   to help you troubleshoot.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Need HELP’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/wordpress-mu-domain-mapping.svg)
 * [WordPress MU Domain Mapping](https://wordpress.org/plugins/wordpress-mu-domain-mapping/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-mu-domain-mapping/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-mu-domain-mapping/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-mu-domain-mapping/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-mu-domain-mapping/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-mu-domain-mapping/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [Ron Rennick](https://wordpress.org/support/users/wpmuguru/)
 * Last activity: [10 years, 12 months ago](https://wordpress.org/support/topic/need-help-209/#post-6408843)
 * Status: not resolved