Error install BF v8.0.0.2

It will be helpful if you can copy the error message out of the tiny screenshot for other to see it clearly and completely. I believe you are seeing the same error as reported in this post.
https://jazz.net/forum/questions/119855/unable-to-upgrade-build-forge-to-80-from-7134-1-0010
(The issue went away after a few months without Jérôme knowing exactly what changes on the system made it work).

I could also see a couple of more cases reported and the cause did not get identified in either cases. Some possible solutions were suggested though.
1. Add below path to the system environment variable "Path".
<Build Forge installation folder>\IBM\Build Forge\Apache\bin
Add below path to the system environment variable "OPENSSL_CONF".
<Build Forge installation folder>\IBM\Build Forge\Apache\conf\openssl.cnf
2. Modify the openssl.cnf by doing the following
1) Replace all slash(/) with double backslashes (\\).
2) Assign an exact path to the variable "dir" - for example, "dir = C:\\myCA"

You may want to attempt to manually run the openssl command listed in the output to test if the command can complete without issues.
The openssl command should be available under the %BF_HOME%\Manager\install.log file, though the password will be hidden as required.

A similar reported issue with this error was resolved by modifying the password to following password rules.
You may need to modify your password to use alternate set of characters.