slot booking is not allowed error

Slot Error Rate - Ratio of incorrect slot predic- tions to the total number of labeled slots in the dataset 3 Interpretation Error

Error In Server No Slot Booking Nor Bill Could Be Made Till 2 Pm, 1300 Quintals Of Moong Was Purchased सर्वर में एरर

error 1089 “We are sorry, but this time slot is no longer available Please refresh the page and try another time slot Thank you ”

error slot This is a first attempt to work with signal slot AFTER I reinstalled my Qt Creator Since I am adding a slot in I do not get why