Most warnings and error messages in Analytica (including ACP) include a More link to an Error message page in this Analytica wiki. Most of these pages give more detail on the likely cause(s) of the error and suggest a remedy.
Some of these error message pages are blank. In such cases, we invite you to add information to help your fellow Analytica users -- if you figure out the cause and/or find a remedy. If you are stuck, please email support@Lumina.com, preferably with a copy of the message.
Analytica error message 1234 Example format proposed by Max.