ModuleNotFoundError: No module named 'conda'

my conda env working fine but when I ran ~$ conda upgrade it suggest other command.

~$ conda update --prefix /home/dir1/anaconda3 anaconda

so I ran it and work fine but after the complete process when running

conda 

or any other

conda info or conda -v

get the same error

Traceback (most recent call last): File "/home/dir1/anaconda3/bin/conda", line 12, in <module> from conda.cli import main
ModuleNotFoundError: No module named 'conda'

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