Was able to log in to uk.linkedin.com and accept an invite, but got an error message on logout. Now just getting errors. Unrelated to anything, but interesting

Was able to log in to uk.linkedin.com and accept an invite, but got an error message on logout. Now just getting errors. Unrelated to anything, but interesting (to me) the copyright line at the bottom of the UK site was reading 2020 a few minutes ago.