Just got reply from GJ
"Thank you for reaching out.
We are currently working to release a new login feature to ensure a better experience on the GreenJinn app. Unfortunately, you might keep experiencing the same issue while trying to log in until the new version of the app will be released. Our team is working hard to make it available as soon as possible, and you will be notified about that. We sincerely apologise for the inconvenience.
Of course, we are here to support you with any receipts that you might not be able to submit in the meantime. Please just make sure to keep your receipts until they will be successfully submitted through the app.
We apologise again for the inconvenience and we are hoping for your kind understanding. If you have any further questions, please do not hesitate to let us know."