Is it just me or does a sign saying
"connection information is not valid. Please force close and restart the app. If the problem reoccurs, you must reinstall the app. (0004)"
pop up everytime I try to request a friend even though my connection is fine?
Also "this app cannot run normally due to an unknown network failure. (0000)" pops up everytime I close the forums window. I don't think there's anything that is wrong with my network connection T_T
"connection information is not valid. Please force close and restart the app. If the problem reoccurs, you must reinstall the app. (0004)"
pop up everytime I try to request a friend even though my connection is fine?
Also "this app cannot run normally due to an unknown network failure. (0000)" pops up everytime I close the forums window. I don't think there's anything that is wrong with my network connection T_T
Natara 
We sincerely apologize for the inconvenience.
It might be inconvenient, but please try to reinstall the Blustone app after deleting it once to check if the same issue occurs.
If the same issue occurs after the re-installation, please contact us through our "Support" page.
We will make an additional investigation upon your issue.
Please feel free to contact us if you have any further questions.
Thank you!