SYSTEM_DATREF_INTERNAL_ERROR is an ABAP runtime error which you may come across when using or developing within an SAP system. See below for the standard details explaining what it means and how you can avoid or fix this runtime error.
Short Dump Classification: I - Internal Kernel Error
You can view further information about a runtme error by using transaction code ST22 which will show you this and all runtime erros that have happen in your SAP system.
Also check out the Comments section below to view or add related contributions and example screen shots.
Please see internal error for more details about the possible cause of this runtime error and how it could be avoided.
When processing data references, an internal error occurred.
Please see internal error for more details about the possible cause of this runtime error and how it could be avoided.
An internal error occurred during the processing of data references.
The data reference involved has the internal number <runtime parameter>.
Please see internal error for more details about the possible cause of this runtime error and how it could be avoided.
SYSTEM_DATREF_INTERNAL_ERROR - system datref internal error SYSTEM_DATA_ALREADY_FREE - system data already free SYSTEM_CORE_DUMPED - system core dumped SYSTEM_CLASS_NOT_FOUND - system class not found SYSTEM_CLASSCONSTRUCTOR_FAILED - system classconstructor failed SYSTEM_CANT_CLEAR - system cant clear