錯誤 / Error!

error:

Helmet expects a string as a child of <title>. Did you forget to wrap your children in braces? ( <title>{``}</title> ) Refer to our API for more information.

Invariant Violation: Helmet expects a string as a child of <title>. Did you forget to wrap your children in braces? ( <title>{``}</title> ) Refer to our API for more information. at Jft (https://yoalearning.com/assets/index.61d9dd71.js:248:4703) at z3.warnOnInvalidChildren (https://yoalearning.com/assets/index.61d9dd71.js:248:15959) at https://yoalearning.com/assets/index.61d9dd71.js:248:16450 at https://yoalearning.com/assets/index.61d9dd71.js:9:3799 at https://yoalearning.com/assets/index.61d9dd71.js:9:3287 at r1 (https://yoalearning.com/assets/index.61d9dd71.js:9:2496) at r1 (https://yoalearning.com/assets/index.61d9dd71.js:9:2803) at d0 (https://yoalearning.com/assets/index.61d9dd71.js:9:3253) at Object.forEach (https://yoalearning.com/assets/index.61d9dd71.js:9:3781) at z3.mapChildrenToProps (https://yoalearning.com/assets/index.61d9dd71.js:248:16265) at z3.render (https://yoalearning.com/assets/index.61d9dd71.js:248:16835) at S8 (https://yoalearning.com/assets/index.61d9dd71.js:32:6220) at _F (https://yoalearning.com/assets/index.61d9dd71.js:32:6016) at hZ (https://yoalearning.com/assets/index.61d9dd71.js:32:45335) at fZ (https://yoalearning.com/assets/index.61d9dd71.js:32:40098) at g2e (https://yoalearning.com/assets/index.61d9dd71.js:32:40024) at ex (https://yoalearning.com/assets/index.61d9dd71.js:32:39875) at R8 (https://yoalearning.com/assets/index.61d9dd71.js:32:36205) at lZ (https://yoalearning.com/assets/index.61d9dd71.js:32:35149) at _ (https://yoalearning.com/assets/index.61d9dd71.js:17:1550) at MessagePort.I (https://yoalearning.com/assets/index.61d9dd71.js:17:1914)