The Web Script /alfresco/s/slingshot/zipContents has responded with a status of 500 ‐ Internal Error. 500 Description: An error inside the HTTP server which prevented it from fulfilling the request. Message: 1126295357 Exception in Transaction. Exception: java.lang.OutOfMemoryError ‐ Java heap space
What is your Alfresco / Tomcat configuration (Xmx start parameter)? How many items are you managing / processing in the webscript call? What were your actions before attempting the ZIP download? How are you running Alfresco (all in one vs. seperate servers)? Usually, this is a sign of a non-optimal configuration, rather than technical issue of Alfresco?