2765329 - Error Failed to handle upload (error: 500) appears while uploading the custom MDF object data

Error "Failed to handle upload (error: 500)" occurs while uploading the custom object data.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SuccessFactors HXM Suite

PLS-4911, error: 500, MDF import, manage data,  Failed to handle upload (error: 500) , KBA , LOD-SF-MDF-IMP , Import and Export Issues , Problem