corrupt PortIndex file

[Bjarne D Mathiesen]

Whenever I do something like this

#=> port installed name:^clang name:^llvm name:*gcc* name:libcxx

I get this :

Warning: It looks like your PortIndex file for
rsync://rsync.macports.org/release/tarballs/ports.tar may be corrupt.
Warning: Can't open index file for source:
rsync://rsync.macports.org/release/tarballs/ports.tar

I do have some somewhat crazy user:group settings on
root at 0125000629 01:34:31
/macports/var/macports/sources/rsync.macports.org/release/tarballs
#=> ls -l
total 327904
-rw-r--r--   1 root  admin     12762967 29 Aug 20:30 PortIndex
-rw-r--r--   1 root  admin          512 29 Aug 20:44 PortIndex.rmd160
drwxr-xr-x  10 root  postgres      1156  5 Mar  2017 base
-rw-r--r--   1 root  admin     85764608 26 Feb  2017 base.tar
-rw-r--r--   1 root  admin          512 26 Feb  2017 base.tar.rmd160
drwxr-xr-x  53 ldap  postgres      2108 30 Aug 01:38 ports
-rw-r--r--   1 root  admin     69342720 29 Aug 23:36 ports.tar
-rw-r--r--   1 root  admin          512 29 Aug 23:36 ports.tar.rmd160

Any pointers as to how I can fix this issue ?!? :-) :-D

-- 
Bjarne D Mathiesen
Korsør ; Danmark ; Europa
----------------------------------------------------------------------
denne besked er skrevet i et (næsten) M$-frit miljø
MacOS X 10.13.6 High Sierra :
   17" 2011 MacBook Pro ; 2.8GHz Intel Core i7 ; 16GB 1067MHz DDR3
   2012 Mac Pro ; 2 x 3.46GHz 6-Core Xeon ; 48GB
MacOS X 10.6.8 Snow Leopard :
   Mac Mini ; 2GHz Core 2 Duo (64 bit) ; 4GB (3GB actual) 667MHz
   Mac Mini ; 1.83GHz Core Duo (32 bit) ; 2GB 667Mhz