had been the slowness of the game, some bugs:
1) images focus rejection in the menu star http://prntscr.com/1e211hj
2) to collect in lot in the messages more http://prntscr.com/1e239b9
3) doesn't appear the amount of available ores in the mines http://prntscr.com/1e287ii
4) non sage when leaving screen configuration http://prntscr.com/1e2a0ob
5) he/she doesn't appear the mines found by the geologists http://prntscr.com/1e2b0y8
6) the green button of who is connected doesn't appear. http://prntscr.com/1e2b0y8
Due to extreme slowness of the game, it was not possible to verify more mistakes. The is very difficult until sending geologists and exploiters.
Tested in Google Chrome, Edge, Firefox and Vivaldi