It only shows 19.1 in your environment variables. Can you confirm if you tried installing 2019 R2 ?
In the meantime, for 19.1, you can try these commands
“%AWP_ROOT191%..Shared FilesLicensingwinx64ansysli_util” -checkout aa_t_i
“%AWP_ROOT191%..Shared FilesLicensingwinx64ansysli_util” -checkout ANS_SOLVER