Help needed for 3 very important problems

Please see the following steps and you will get the debugging errors

Visit http://www.anywheregk.in

Next >> https://anywheregk.in/courses/pack-basic/

You will get the error below

You can get more details here

https://streamable.com/eggm0x

https://prnt.sc/uffus7

https://prnt.sc/uepplo

Also the mobile menu is not there for register /Login
i just made some changes so that users can use properly but still no mobile register menus in the header.

https://prnt.sc/uffx8t

Please tell some custom css to remove the 30 days money back guarantee on the course page ( on the course buy button)
Please also rectify this issue.

https://prnt.sc/uepqji

Please rectify the above problems. Its very very urgent.