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You have a blank Fenestration Surface Name in the extensible list at the end of your WindowShadingControl with a name Persianas 30%.

For example, the following should give the same error message. Note the missing name in Fenestration Surface 4 Name:

WindowShadingControl,
DOUBLE PANE WITH SCREEN-DPWB,  !- Name
DPWB,                    !- Zone Name
1,                       !- Shading Control Sequence Number
ExteriorScreen,          !- Shading Type
DOUBLE PANE WITH SCREEN, !- Construction with Shading Name
OnIfScheduleAllows,      !- Shading Control Type
ScreenSchedule,          !- Schedule Name
20.0,                    !- Setpoint {W/m2, W or deg C}
YES,                     !- Shading Control Is Scheduled
NO,                      !- Glare Control Is Active
,                        !- Shading Device Material Name
,                        !- Type of Slat Angle Control for Blinds
,                        !- Slat Angle Schedule Name
,                        !- Setpoint 2 {W/m2 or deg C}
,                        !- Daylighting Control Object Name
Sequential,              !- Multiple Surface Control Type
Zn003:Wall001:Win001,    !- Fenestration Surface 1 Name
Zn003:Wall002:Win001,    !- Fenestration Surface 2 Name
Zn003:Wall003:Win001,    !- Fenestration Surface 3 Name
;    !- Fenestration Surface 4 Name