Lenovo A6000 urgent help required...

[ss200222]

I have a Lenovo a6000, the problem I'm facing is that unnecessary files have been taking up space on the internal memory making the phone lag and hang, I've attached the images, please help with a solution.

Thanks

 

[jasonandrews25788]

Use Solid Explorer to delete them.

 

[ss200222]

Use Solid Explorer to delete them.

Will there be any problem after deleting them?