This page handle the issue when you try to load current results or compute function points and load results from TCC, and you get the below displayed error.

Internal error while running data functions. Internal exceptions null.

Step by Step scenario

1. Run analysis and take a snapshot
2. Load current results or compute function points and load results from TCC

Action Plan

1. Get the step from where the exception occur, for this you can check the TCC log file (please refer  the following page in order to locate the TCC log file CAST Management Studio - Information - How to find logs), you can also observe this directly under the log node of TCC GUI:
   
   From this we can see that the issue occurs in the step "Loading data function detail", if this is you case then go to the next step, else jump the next step
   

2. Check if there are data functions that present a self merge and remediate by refering to the following page SQL Queries - CAST Knowledge Base - Corruptions - Corruptions on datafunctions - How to find the objects id of Datafunction which is merged with itself.  This corruption occurs because of "TCC custom procedures" located under the analysis service (procedures named TCC_FP_USR_xxx).

3. If the above steps don't help you to resolve this issue then please contact CAST Technical Support and provide us with the following Relevant input

Relevant input

1. Screenshot showing the error in TCC.
   
2. Sherlock export with the following options: Export Logs (feature checked by default), Export Configuration files (feature checked by default), Export Computer Environment (feature checked by default),Export CAST Bases
3. Log file in SHOW SQL mode, for this please refer to Transaction Configuration Center - Information - How to launch TCC in SHOW SQL mode in order to get the SQL traces

Ticket # 7458, 8622