If the app closes frequently, try clearing the cache in the Opera Mini settings or reinstalling the file.

Official support for the Nokia Xpress browser ended years ago and was replaced by Opera Mini

Opera Mini has evolved over 15 years. An old VXP file (e.g., version 8 or 10) will likely fail to load modern HTTPS websites or render pages as gibberish. You need a new build—specifically versions —which were the last stable builds ported to the VXP container.