i want delete file using fs and node js,express but i have problem not read Cannot read properties of null (reading 'filePath')

i share my code model and error,plese help me

const Schema = mongoose. Schema; // creating a Schema for upladed filles const mulitipleFileSchema = new Schema( \{ userId:{type:String},filePath:{type:String},fileType:{type:String},fileSize:{type:String},files:{type:[0bject],required:true,validate:[(value)value.length>0], \}, \{timestamps: true\}); //creating a model from that schema and exporting the model to use it in aap.js file module. exports = mongoose. model('MultipleFile', mulitipleFileSchema)