i accidenatlly deleted my Macinstosh-HD hard drive

Deleting either Macintosh HD or Macintosh HD - Data should not prevent reinstalling.

The OS goes on Macintosh HD, so if you deleted that volume, it might be confused, but deleting - Data is normal.

Does it say why it won't allow you to reinstall?

Boot into Internet Recovery and erase the entire drive then reinstall macOS.

How to reinstall macOS from macOS Recovery - Apple Support

The only internal disk is "APPLE HDD HTS541010A9E662 Media". Do I erase this?

Yep. That's the one.

That is the actual physical device.

The Container is like a partition--the first level subdivision of a physical disk.

The things inside the Container are the Volumes which are what you interact with.

Then it should be easy. Boot into Internet Recovery, Erase the disk completely as described in the linked documents, the Reinstall macOS.

rmurillo017 wrote:

That Is correct, it will not allow me to reinstall. It does say something about a volume but I have tried the two hard drive disks available and it won’t work with either one.

DiskUtility>View>Show All Devices. The parent Drive is the top most (unchangeable name of your SSD brand name) below this will be the Container and the associated Volumes

See either of the links leroydouglas or I posted.

You need to erase the disk completely, then reinstall.

Do you have a backup?

You need to reformat the Drive from DiskUtility>View>Show All Devives

Here you can erase/format the parent Drive (not the Container or child Volumes) and reinstall the macOS, and restore your user from a backup

How to reinstall macOS from macOS Recovery - https://support.apple.com/en-us/HT204904

How to use Time Machine to... restore your Mac: https://support.apple.com/en-us/HT201250

How to erase a disk for Mac - Apple Support