With the 6.87 update coming into the game, several items have been reworked.

This has adversely affected the guided bot matches in the following way -
While playing as sven in the guided bot match, the player is asked to buy Drums of endurance.
Unlike pre 6.87 times, the drum now requires bracer, ring of regen, wind lace and robe of magi rather than bracer, robe of magi and recipe.
As the tutorial(guided bot match) doesnt allow to buy ring of health and wind lace, the player is stuck and cannot complete the tutorial, nor can he/she buy more items.

I hope that this bug/issue is quickly resolved. This issue really hinders the accessibility of the game.