This usually happens, either an advertising plug-in is inserted into the software already installed on the mobile phone, or an advertising plug-in is inserted into the version you are updating now, so you will be prompted that a data packet with the same name with conflicting signatures has been installed. Most of the data packets you are updating now have problems and have been inserted into advertisements. If you insist on updating this version, you can install the new version by uninstalling the old version, but the previous game progress will be lost.