Maple not installing.

try uninstalling maple, then reinstalling it using the v61 client. that installs a new base.wz file. from there, run the patcher and it should patch to v62.

or if you dont wanna download the 1+ gb v61 client, and trust me, download base.wz from here (filefront). its the v61 base.wz so it should be compatible with the one in your folder.