Entities APM Errors DetailLink doesn't work

**Describe the bug**
None of the Entities APM Errors DetailLinks work.

**To Reproduce**
Steps to reproduce the behavior:
Create a report, go to Entities APM and go to Errors (Worksheet 12)
Click DetailLink
Get a "Cannot open the specified file"
Link ends in "FRA3.20.Internal Ser.-317692.xlsx", "")" for an example"

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
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**Desktop (please complete the following information):**
- OS: [e.g. iOS] Windows 10
- .NET Framework Type (Full/Core) Full
- .NET/.NET Core Framework Version v4.0.30319

**Logs**
Add logs from the program execution https://github.com/Appdynamics/AppDynamics.DEXTER/wiki/Log-Files

**Reports**
Rather not share publicly if needed, can upload.

Start by reproducing the problem in a report under Entities APM → Errors (Worksheet 12), then inspect the generated DetailLink ending in the reported .xlsx filename. No source file or test is named; the issue is resolved when the DetailLinks open the intended files instead of producing "Cannot open the specified file."

Written by the indexing model from the issue text.