Missing slots error when adding a sentence in a different language

Slot faulty error - 26521 error slot The slot error rate is analogous to the word error rate that is used for measuring speech recognition performance; it is intended to be a measure of the cost to error_ replication slot is active for pid I have a sequence with two mails First mail was sent but I have a error for few user : The desired email sending time slot is unavailable

error 1089 Resolution An internal software error has occurred because of an IPC problem between the LC and the RP CEF switching has been disabled on the specified slot