[pokemon rejuvenation melia troubles]

I'm at the fight with Melia at Alexandra's secret base/house and I'm having the worst of luck and just cant pass her what should I do?

[Pokemon Rejuvenation i cant find the old rod after the fourth gym pls help]

im trying to get the old rod for grimer which'll absolutely save me.

[reborn save files]

Just now, DemonicGamerz said:

Thank you i have recovered my save file thank heavens hours of grinding are over

*are saved

[reborn save files]

Thank you i have recovered my save file thank heavens hours of grinding are over

[reborn save files]

i have the nil nil class glitch and i know how to fix it but before i fix it want to know 'if i delete all the save files in the folder will i be able to simply restart a brand new file from scratch.' just want to be sure in case it happens on accident

[Reborn's not working]

I didn't know you could make and use backup save files when I started playing I also deleted my game and have repeatedly downloaded it but nothings workings.
EDIT 1: Also thanks for the reply. 
EDIT 2: Sorry no this is really helpful I think it might work

 

[Reborn's not working]

pls help my game is showing this 'Script pokemonload  line 461 not method error ocurred undefined method last save for nil:nil Class