Help tcl not starting

I am on my rooted TCL Flip 2, with play services.

When turning on i get to this screen.

The only thing I did the last few days that may have triggered it is downloading triplesu and enabling speed up device. I also downloaded on whatsapp the option to enable voice notes transcript. The package was around 130 mb.

Anyone can help me?

Do you have a backup of your firmware? If so, reflash with the backup firmware.

In middle of doing that. I am curious to know what caused it though.

Even so, it’s probably not a firmware issue but something you did with root. Now your only option if you want to keep your data is to flash a stock boot image.
If you ever want to root it again, you’ll first have to wipe it.
This has happened to me many times.