TypeError: Cannot read properties of undefined (reading 'commands')

[Bodeyibl]

Hi, i just tried your awsome bot but i cant get past this error... I didnt change anything, i just did the config and i keep getting this error code.

TypeError: Cannot read properties of undefined (reading 'commands')
    at loadslashCommands (D:\[Coding]\Desktop\WaifuMusic-master\Handlers\commandHandler.js:51:14)
    at D:\[Coding]\Desktop\WaifuMusic-master\Structures\WaifuMusic.js:80:3
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

Thanks in advance!