Can't add calendar to the outlook

Hi,
the problem is I can't add the calendar from Confluence (as discussed here - https://confluence.atlassian.com/teamcal/subscribe-to-team-calendars-from-microsoft-outlook-251005307.html) to the outlook. Instead I get an error(see screenshot in the outlook.docx). At the same time I get an errors in the catalina.out (see catalina.out.txt) and in the atlassian-confluence.log (see atlassian-confluence.log.txt).
Could you help me?