Assert doesn't stop script

[DavorJ]

Get-ChildItem : ASSERT FAILED: Making link W:\tmp\8759ac1e for long path ...\Archive\Data\2007-04-02 failed with ERROR: Cannot create a file when that
file already exists..
At W:\Scripts\ps-backup\github\ps-backup.ps1:393 char:15

This error doesn't stop script, and happens if there are already links in the tmp folder, not deleted after last run.

Another one:
Get-ChildItem : ASSERT FAILED: Making link W:\tmp\edc03c17 for long path W:\test-backup-folder failed with ERROR: You d
o not have sufficient privilege to perform this operation..
At W:\scripts\ps-backup\github\ps-backup.ps1:393 char:15