OpenTAP Linux: After manually upgrading OpenTAP, tap command gives an error

Environment:

Windows 10, 64-bit

OpenTAP 9.6.4 - > 9.7.0-rc.4 - reproduced

OpenTAP 9.5.0 - > 9.6.4 - not reproduced

Steps to reproduce:

1. Have an Ubuntu VM with OpenTAP 9.6.4
2. Copy OpenTAP 9.7.0-rc.4 .tar file to home
3. Extract it
4. Set `INSTALL.sh' to allow executin as a program
5. Run in terminal sh INSTALL.sh
6. Choose to replace All
7. Run tap

Actual result:

tap gives an error when executed

Expected result:

tap should work after the upgrade

Other remarks:

tap package install works for updating OpenTAP

Manually upgrading KS8000A from 9.6.4 to 9.7.0-rc2 will crash since the install procedure includes tap commands