change {-1} to ${-1}

@@ -258,7 +258,7 @@ Get Broker Property By Username
 
 
 Підготувати дані про постачальника
-  [Arguments]  ${username}  ${lotIndex}={-1}
+  [Arguments]  ${username}  ${lotIndex}=${-1}
   ${supplier_data}=  test_supplier_data
   Run Keyword If  ${lotIndex} > -1  Set To Dictionary  ${supplier_data.data}  lotID=${USERS.users['${username}'].tender_data.data['lots'][${lotIndex}]['id']}
   Set To Dictionary  ${USERS.users['${username}']}  supplier_data=${supplier_data}