'SQLSTATE[HY000] when copy-paste with cakephp 4

I'm working in cakephp 4 and when I copy-paste a text in a textarea field and I submit my form I have the following error :

SQLSTATE[HY000]: General error: 1366 Incorrect string value: '\xE2\x80\x80pou...' for column 'description' at row 1

I don't know what is going on... Could anyone help me please ?

mysql cakephp-4.x

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