How to use Free Trial?

I have downloaded and installed the Arm Development Studio Gold Edition Free Trial on Windows.

The installer gave the following error:

Do I need to worry about that?

When I run the GUI and attempt to build an example, I see:

18:40:58 **** Build of configuration Default for project calendar_Armv7-A_AC6 ****
make all 
armclang -c --target=arm-arm-none-eabi -mcpu=Cortex-A9 -mfpu=none -g -O1 calendar.c -o calendar.o
armclang: error: Your installation could be misconfigured or corrupted.
armclang: note: 
Check that your licensing and toolkit configuration is set up correctly, using the information available at:
armclang: note: 
Information about this error is available at:
 General licensing information is available at:
 If you need further help, provide this complete error report to your supplier or
 - ARMLMD_LICENSE_FILE: 'C:\Users\<snip>\AppData\Roaming\arm\ds\licenses'
 - LM_LICENSE_FILE: '<snip>'
 - Product location: product not found
 - Toolchain location: C:\Program Files\Arm\Development Studio 2021.1\sw\..\sw\ARMCompiler6.16\bin
 - Selected tool variant: product
Product: unknown
Component: ARM Compiler 6.16
Tool: armclang [5dfeb700]

Do I need to install a trial license? If so, how do I obtain one?