Update 15/4: On 13th April, Mount Athos peninsula was declared a state of emergency by a decision by the Governor of Central Macedonia, Apostolos Tzitzikostas – information from Romfea.gr. What this will mean for visitors to Athos in the coming period is unknown.
According to these two Facebook video‘s (nr two) from Alex the road between Karyes and Dafni has yesterday (5/4/2020) been badly damaged due to heavy rainfall and bad weather conditions of the past days in Greece (thanks Alex for sharing this news, published on Facebook 6/4/2020 9.44 h.). The news is now also reported on this internet site (thanks Germanus). Just now (13.15 h.) I received better quality pictures from monk Theodosios from Simonospetras, that show how severe the situation is: (public) transport will be impossible for the coming time!
Bas shared this YouTube video above from Kafsokalivia.
Other roads on Athos also suffered from the torrential rains:
In 2001 a flood threatened Simonos Petras.
Wim Voogd, 6/4
Athos - Agios Oros 
This is not a quick or an easy thing to fix. Is there an alternative way to get to Karyes from Dafni? Is the old footpath still in good shape?
I think the landslide happened not far from Karyes, so it would take only a couple of minutes -15/20-to walk further down the main road to the bus stop in Karyes.