Hi Laura,
The error message you encountered while importing DICOM files into CERR suggests that there is an issue with the indexing of array elements in the CERR software. It appears that the code is trying to access an element of an array that does not exist or has not been properly initialized.
To resolve thid issue, the first step is to check if the indexing is done properly. If this does not solve, then make sure that the DICOM files you are trying to import are valid and not corrupted. Also ensure that you are using the latest version of CERR. I hope this helps!