Subfolders for different countries were just generated w/o us knowing

we didn’t make any changes for 2 weeks on the site but on Nov 29 the GSC detected a large spike of new pages

we found out that there are now 3 new subfolders for our site, but we didn’t set it up because we had only catered to US… the sitemap was also changed

-juvabun.com (main) for US
-juvabun.com/en-gb for U.K.
-juvabun.com/en-ca for Canada
-juvabun.com/en-au for Austrlia

we speculated that a glitch or bug caused➤ the creation of the new sitemaps which➤ GSC crawled = thus the large spike of new auto generated pages were detected

Any thoughts on how to fix or remove the subfolders?