Thanks for reporting this in! This error is from an incorrect configuration of the plugin parameters. Please make sure of the following:
1) Make sure Card Summons is below CGC Core Engine and CGC Party UI Type A in the Plugin Manager list.
2) Copy over the img/CGC/summons folder to your new project so it can reference those image files. Make sure the plugin parameters are referencing the names of the image files in that folder.
3) When Card Summons is placed into a CGC v1.6.3 Demo Project, it should automatically grab the plugin parameters from before it was removed. If this is not the case, please follow the images provided to replicate the settings manually.
If after going through these steps, the error happens again, press F8 to open the Developer Tools window and click on the Console tab near the top. It should have some errors in red text, please post a screenshot of that in your reply and we should be able to troubleshoot further.
Glad to hear you got it working!
Yes, it is absolutely possible to turn off the Grid Overlay. You can use the Plugin Commands: EnableCardField to turn ON the Card Grid and DisableCardField to turn OFF the Card Grid. These must be called in Events before Battle Processing starts so that the plugin knows whether the next battle will be a regular CGC battle or a Card Summons one.
