Hi @IJBSRR_Journal,
As I stated earlier, looking at other posts that have this error message provides some advice on next steps to take: https://forum.pkp.sfu.ca/search?q="The%20uploaded%20plugin%20archive%20does%20not%20contain%20a%20folder%20that%20corresponds%20to%20the%20plugin%20name."%20status%3Asolved
As one of the posts suggests, as a next step:
try checking your configuration file to see if the location to your “tar” command line tool is properly specified. If that doesn’t resolve the issue, check the contents of your PHP error log for more details.
Also, I see you also posted here: OpenID Authentication Plugin showing ! A Plugin is not Specified and is Required
Please don’t create duplicate forum threads (it goes against our forum guidelines). Let’s keep the discussion to this thread, and I’ll close the other one.
Best regards,
Roger
PKP Team