On sandbox (you don't say where you are testing this) your app does have orders read. If you need further help, please post the full logcat when you experience this problem.
Post logcat if you need help. I'm pretty smart but not even I can telepathically read the bits from your computer from hundreds of miles away. Include the whole logcat starting from when you sideload the APK until when it fails. Use https://pastebin.com/ if you need a place to host the log file.
2 People are following this question.
Remove application from recent list in clover mini first generation device
Computer restarts when booting from clover for the first time
How can format to string for printing custom reports
com.clover.intent.action.REFUND_PROCESSED did'nt have refund id?
Multiple Tax/Vat for Ireland clover merchant provides tax details wrong?