Locus Map <no-reply@asamm.com>???

Hi, I got an email from this emailaddress (see above) and tried to login to the website: https://docs.locusmap.app/doku.php, mentioned in the email.

Strangely I could not login with my normal email and password credentials (with which I cán login to the Locus-web-planner: https://web.locusmap.app/en/plan?). As a matter of fact I am -as we speak- loggedin to the last website and upon trying to login to the first website with the credentials of the latter, I get the response that my email and/or password are not recognised..! Are the two sites different from eachother? Are those different companies? I am confused! Please help