communication vbus solar resol

[joost001]

After this change, I still get the following error log, when I start the script

resol_deltasol 13.11.2017 11:08:49
User library "luavbus", Line 731: attempt to index global 'bit32' (a nil value)
resol_deltasol 13.11.2017 11:09:50
User library "luavbus", Line 149: attempt to index field 'socket' (a nil value)

regards,
Joost