Old package in AUR.
New 5.2.0.185 can be made by:
download https://www.devolo.de/support/downloads/download/devolo-cockpit
and do sha256 checksum.
Edit Build - replace old version with 5.2.0.185 AND change the line “sha256sums” to:
sha256sums=('976099b5aa4785edc9ceabb6246abe724b78d2e717d1906eb91bf137f585a1e6'
'6f187ca5c7a599b5394ea09cd68885168dbd19b5bd72df5ce083e721e2f0a12c')
Result: Version 5.2.0.185-2