X2go rstudio 1.0.153 debian 8 - X error

hello

since this morning when we run rstudio with x2go we got the following error :

rstudio: Fatal IO error 11 (Resource temporarily unavailable) on X server :50.0.

  • remote os : up2date debian 8
  • client os : up2date debian 9
  • rstudio version : rstudio-1.0.153-amd64.deb

anyone gets a clue ?

thx

oau