Error: 'G:\PleskVhosts\bmtcorp.net\httpdocs\base/templates_c' is not writable! Please chmod this directory to 777

Please fix the above error(s), install halted!

Error: 'G:\PleskVhosts\bmtcorp.net\httpdocs\base/cache' is not writable! Please chmod this directory to 777

Please fix the above error(s), install halted!