Play Store: Error: while converting number to string, invalid number value

```
com.facebook.react.common.JavascriptException: Error: while converting number to string, invalid number value '${}', should be a number matching (^-?[0-9.]+)., stack:
u@1489:1008
toWei@1489:1813
toWei@1702:2372
handleETHPrimaryCurrency@3495:8253
updateAmount@3495:9240
onChange@342:2638
```