TypeError: Cannot read property 'appendChild' of null in REACT

[alejandroburgos]

_addOption
node_modules/pselect.js/dist/pselect.js:134
131 | optionElement.setAttribute('selected', '');
132 | optionElement.setAttribute('disabled', '');
133 | }

134 | parentElement.appendChild(optionElement);
135 | }
136 |
137 | module.exports = Pselect;

Haga lo que haga todo me devuelve un error NULL.