Title: Plugin doesn’t work. Errors on ShipTime servers.
Last modified: July 7, 2025

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# Plugin doesn’t work. Errors on ShipTime servers.

 *  [quarterdiego](https://wordpress.org/support/users/quarterdiego/)
 * (@quarterdiego)
 * [11 months, 1 week ago](https://wordpress.org/support/topic/plugin-doesnt-work-errors-on-shiptime-servers/)
 * I installed the plugin and followed the instructions from ShipTime, but whenever
   I try to “Connect” the plugin to ShipTime’s servers I get the following error:
 * **Exception**java.lang.IllegalStateException: Cannot call sendRedirect() after
   the response has been committed org.apache.catalina.connector.ResponseFacade.
   sendRedirect(ResponseFacade.java:488) com.shiptime.ui.server.servlets.DirectAppAuthServlet.
   doGet(DirectAppAuthServlet.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.
   java:634) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.
   tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) com.shiptime.ui.server.
   servlets.GWTCacheControlFilter.doFilter(GWTCacheControlFilter.java:52) com.shiptime.
   ui.server.servlets.GWTCacheControlFilter.doFilter(GWTCacheControlFilter.java:
   52) ch.qos.logback.classic.selector.servlet.LoggerContextFilter.doFilter(LoggerContextFilter.
   java:70)
 * Their tech support said I needed to whitelist some IPs as my firewall was preventing
   ShipTime servers from contacting my WP Engine server. There are no records on
   my access logs that ShipTime servers tried to connect. Whitelisting the IPs did
   nothing to fix the issue.
 * I can see that my WooCommerce store shows up on ShipTime’s dashboard, and I can
   even enable/disable live rates, but I cannot use any shipping methods related
   to ShipTime on my store.
 * This plugin is buggy and non-functional.
    -  This topic was modified 11 months, 1 week ago by [quarterdiego](https://wordpress.org/support/users/quarterdiego/).

The topic ‘Plugin doesn’t work. Errors on ShipTime servers.’ is closed to new replies.

 * ![](https://ps.w.org/shiptime-discount-shipping/assets/icon-256x256.png?rev=2854660)
 * [ShipTime: Discounted Shipping Rates](https://wordpress.org/plugins/shiptime-discount-shipping/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/shiptime-discount-shipping/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/shiptime-discount-shipping/)
 * [Active Topics](https://wordpress.org/support/plugin/shiptime-discount-shipping/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/shiptime-discount-shipping/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/shiptime-discount-shipping/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [quarterdiego](https://wordpress.org/support/users/quarterdiego/)
 * Last activity: [11 months, 1 week ago](https://wordpress.org/support/topic/plugin-doesnt-work-errors-on-shiptime-servers/)