Ok no problem !
My recommendation here is to flash the phone back to the correct Samsung Stock ROM for your device. What is a stock ROM and how do I get one? Then start again with /e/.
We can also try to help you recover the situation, but it is not fully clear exactly where you are stuck. In following your instructions (linked below) you must just do everything in a workable sequence. When the computer says no, (as we all know) you cannot argue with it, the answer is no. So you must retrace your steps to solid ground!
I just say all this as your previous last questions were:
Is there a way to push TWRP further than the boot screen? Or would I have to do a fresh install of the TWRP from the PC while the device is on download mode?
So let’s just look at this fundamentally.
- You have Download mode - (this is fairly hard to destroy, but you probably could !), I regard it as a very fundamental communication channel with the device. Any time you could not reach Download mode you would be stuffed.
- You have Recovery mode. The device comes with Samsung recovery has limited powers to recover the “Main device system”. We like to substitute a Custom recovery, TWRP. It is generally best to search for the TWRP recommended for your device and use that. If it is wrong, change it. If your Recovery can cause “System” to boot, end of story. If “System” cannot boot or run, the system will just collapse and (fundamentally) hand back to Recovery.
- Now we have the System. This only really has to contain every element of the ROM, in the correct place and with the correct connections to the “Lower layers”, and it will run.
So the answer to the question as you posed it would be No and Yes.
But the solution is more likely to be some error in “System” which is not allowing “System” to boot or run.
Did you use LeOS last? LeOS (being a GSI) is different from LineageOS and /e/, especially as it makes use of the “Lower layers” in a fundamentally different way.
/e/ install instructions, https://doc.e.foundation/devices/herolte/install, say
Caution: Do not install /e/OS on top of a higher version of stock OS. Before installing /e/OS ensure your device has the latest stock OS of the same version as /e/OS. If only lower versions of the stock are available then install the last available lower version before installing /e/OS.
I would not expect to be able to advise on how to proceed if you were attempting to flash the device on top of LeOS instead of the recommendation, “the latest stock OS”