Check the content of the file called "_dev_dvb_adapter2_STB0899_Multistandard" it should contain 
"type": "DVB-S"
row. I guess yuo have something else there. Tvheadedit checks this parameter.
See mine:
{
	"enabled": 1,
	"fe_path": "/dev/dvb/adapter0/frontend0",
	"dmx_path": "/dev/dvb/adapter0/demux0",
	"dvr_path": "/dev/dvb/adapter0/dvr0",
	"type": "DVB-S",
	"displayname": "TurboSight TBS 6922 DVBS/S2 frontend",
	"autodiscovery": 0,
	"idlescan": 1,
	"idleclose": 0,
	"skip_checksubscr": 0,
	"sidtochan": 0,
	"qmon": 0,
	"poweroff": 0,
	"nitoid": 0,
	"diseqc_version": 1,
	"diseqc_repeats": 0,
	"extrapriority": 0,
	"skip_initialscan": 0,
	"disable_pmt_monitor": 0,
	"full_mux_rx": -1,
	"grace_period": 0
}