Exporting fails if there is no internet access

[Palloxin]

Steps to reproduce

1. turn off internet
2. export a novel

Expected behavior

successful export

Actual behavior

LNReader version

1.1.18

Android version

Android 8 miui 8

Device

Huawei p8 lite 2017

Other details

Traitor said between the lines to report here.

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• I have written a short but informative title.
• If this is an issue with a source, I should be opening an issue in the sources repository.
• I have updated the app to version 1.1.18.
• I will fill out all of the requested information in this form.