If you are having trouble entering the form where it was successful for the first student but it is pending sending or failed to be sent, make sure to optimize the cellphone/gadget used to clear history & cache to be able to send normally again.
Option or step to clear cache
CTRL + H => Clear History
MS. Edge – CTRL + H – Press three dot on right top and clear browsing data
Chrome – change time range as you need – clear data
Chrome – CTRL + H Pada Chrome – Clear browsing data
Smartphone **Android, it will be the same as desktop, with chrome app or if you used for safari please find out the best way to clear it.