Uniswap fork: liquidity is not removed. What is the problem?

Question

blockchain

I hope that the question does not violate rule 2.3 about questions to specific organizations.
I'm trying to fork Uniswap, with a protocol fee attached. Deploy factory and router via Remix on Rinkeby. I replace contracts in the interface and check. Swap, pairing works. But removing liquidity or the entire pair is not.
Gives an error in
UniswapERC20
on a function that, as I understand it, confirms the validity of the signature.
I can't figure out which setting is the problem.

On etherscan in Geth VM Trace Transaction, this is the picture:

{
  "type": "CALL",
  "from": "0x57d49704f453cdd2b995280d9d7f557e42847d82",
  "to": "0x0b024ab7886e87dde36103d6f4a53e35456d5341",
  "value": "0x0",
  "gas": "0x2d6978",
  "gasUsed": "0x7460",
  "input": "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",
  "output": "0x08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000001c556e697377617056323a20494e56414c49445f5349474e415455524500000000",
  "error": "execution reverted",
  "time": "11.0239ms",
  "calls": [
    {
      "type": "CALL",
      "from": "0x0b024ab7886e87dde36103d6f4a53e35456d5341",
      "to": "0xa5baae8372d14ee9394dace03cb53222db293aee",
      "value": "0x0",
      "gas": "0x2ca8bc",
      "gasUsed": "0x68ea",
      "input": "0xd505accf00000000000000000000000057d49704f453cdd2b995280d9d7f557e42847d820000000000000000000000000b024ab7886e87dde36103d6f4a53e35456d5341000000000000000000000000000000000000000000000000000470de4df81f06000000000000000000000000000000000000000000000000000000005ffd5ee0000000000000000000000000000000000000000000000000000000000000001c9f3cd9721b08bacde6ec671f9186f0e621990760d1b73009516a8db5f2403e5773b73eb0cddc9d288a1b2d5cef84d1c8f4475d5d90a33dc9615e81f982499281",
      "error": "execution reverted"
    }
  ]
}

I hope there are people here who know this area. In terms of debug information, that's all. In the console, etherscane, remix are the same. Thanks in advance)