PS Image slider position

[antman]

Hi, hopefully someone can help me. 

I am trying to re order the slide order in PS Image Slider with the position arrows however it keeps reverting back to default position. 

I am using 1.7 and have tried it on a couple of my stores and get the same error on all of them. 

The error log is giving me this. 

SoftException in Application.cpp:261: File "/home/boscomon/public_html/modules/ps_imageslider/ajax_ps_imageslider.php" is writeable by group, referer: https://boscomonline.net.au/admin123/index.php?controller=AdminModules&configure=ps_imageslider&token=6200a88c01b60e75176212c12e785794&changeStatus&id_slide=5

It appears to be a bug any advice would be appreciated.