how to create account for application in cyberark password vault

Question

i am new to Cyber-Ark password vault and my try is to integrate artifactory with cyber-ark for some generic accounts whose passwords should be stored in the vault.

may i know the exact proess to get it created. We have one safe and i tried to create a safe account as below.

curl -k --location --request POST "https://mypw.net/API/AccountGroups/" \
  --header "Authorization: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  --header "Content-Type: application/json" \
  --data "{
  \"GroupName\":\"AccountGroup01\",
  \"Safe\":\"MY_SAFE\"
}"

its just executed and didnt give any error as well.. Hope it got created. But when i tried to verify this,

curl -k --location --request GET "https:/mypw.net/PasswordVault/API/AccountGroups?Safe=MY_SAFE" \
  --header "Authorization: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  --header "Content-Type: application/json"

getting error as

{"ErrorCode":"PASWS006E","ErrorMessage":"The session token is missing, invalid or expired."}

is there any mistake which i am doing here and is there any way to get the web access on this to verify also ?