i am unable to log in since about the 7th of August this year.

i always get the error message 'SunCertPathBuilderException: unable to find valid certification path to requested target'

i already emailed the support, but they aren't responding anymore because of whyever

i also tried completely reinstalling java (deleting the folder in ProgamFiles, then system control and then reinstalling),
completely reinstalling minecraft (deleting .minecraft folder)

i am completely clueless why this is happening and why only first of now.

i also already asked this elsewhere and they suggested me posting the error log of the magic launcher since the normal launcher doesn't give me any log whatsoever so that'll be attached to