Refresh Failed in IoPay

I’m using IoPay v1.5.0 (822) on a Samsung S7 running Android 8.0.0 (I know, it’s ancient). I’ve just moved about $15 worth of BNB-bsc to my IoPay wallet from my Trust Wallet. The transaction posted in Trust Wallet but it still shows 0 BNB-bsc in my IoPay wallet. I have double checked the IoPay address and it is correct. I tried to refresh the BNB-bsc specific wallet but I just get a toast notification that says “Failed” with no additional information. I’ve tried to refresh specific wallets for other coins in IoPay and they are all giving me the “Failed” toast notification as well. What can I do to correct this?