Do you know what a yatch is?
Granted, “yacht” (pronounced “yot”) can be a slightly tricky word to spell: see the internet for evidence. Moreover, its spelling has changed over time. But when it is spelled “yatch” on a mass-market children’s toy that is masquerading as an educational aid, something has clearly gone wrong. Probably a lot of things: the word “umbrella”, for example, which is misspelled “umberlla” in the same set of toy blocks.
You can read reports about this in the Manchester Evening News and the Guardian, if (like Derek Zoolander) you do not want to be distracted by the beautiful celebrities crammed into the Mail‘s sidebar. Note that there is a deliberate and valid use of the “yatch” spelling (e.g. “Get your mis-educated b-hind to a dictionary, b-yatch!”) but this usage occurs in a colloquial and often vulgar context and is likely to provoke consternation in polite society.