Oh no worries! Thank you for bringing it to my attention. You can change it to
ypos sprt.SPACER*3 anchor (0.0, 0.0)
to make the issue go away - it's a developer warning since align technically also tries to set ypos. It's due to a config value called check_conflicting_properties introduced in the most recent Ren'Py version - you can also disable it with
define config.check_conflicting_properties = False
to avoid these sorts of errors, though I'll also update the code to avoid that issue.