Haven’t received my scans

I scanned my homework and shared it to myself via email (as I've done dozens of times) and it's been 30 minutes and I have yet to receive the scans. And it has to be my app because my friend (using the same app on his phone) scanned my homework and emailed it to me and I got that. This is concerning because I have an exam tomo and if I can't turn it in by the deadline I'll be PISSED. Is there anything I can try?