SiberianCMS Few Fixes and Updates

Hi I need dev to help fix few bugs for siberianCMS first of all 1. APK GENERATOR needs fixing as each time when clicking generate apk I get email telling me it's failed Log Files say this Error ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. Please set the JAVA_HOME variable in your environment to match the location of your Java installation. 2. Template Select is not working when creating new app and selecting template nothing happens. This works fine on PC Laptop but it does not work on Smartphones or tablets so I need this fixed. 3. I would like to change login page in CMS to login page I have made so I need this adding instead of default Siberian login registration page I want custom login registration page which I have. So you don't need to code it from scrtach as I will provide full code for this but I need you to impliment it. 4. Script Update is not working so I need this fixed. Job is not huge so I don't want to pay huge cash for it. For more info send me message Thanks.