MWS upgrade from 8.2.2 to 9.5 - migration tool

I am not able to use the MWS migration tool in upgrading procedures for webMethods version 8.2.2. Error received by starting the /MWS/bin/migrate/ script:

Error during migration. Error message: Invalid source version entered. Valid values are: [9.0.1, 8.2.1, 8.0.2, 7.1.3].

Can you please advise, if/how could be the MWS migration used in this version. If not, is there any document that describes how to migrate MWS config and optimize functionality?

Thanks a lot

Check the MWS version in MWS about page it should be one of the values[8.2.1, 8.0.2]

MWS version is
Integration servers is, build 228 as shown on IS admin page

The migration tool could not resolve the original MWS version, I added “8.2.1” to the script as below: