String data, right truncated: 1406 Error

this is error i get when trying to submit post.

SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'body' at row 1 (SQL: insert into `documents`

here is migration table

public function up() {
        Schema::create('documents', function (Blueprint $table) {
            $table->increments('id');
            $table->integer('user_id');
            $table->integer('project_id');
            $table->string('name');
            $table->string('body');
            $table->timestamp('completed_at')->nullable()->default(null);
            $table->timestamps('timestamp');
        });
    }

you can see this live on website now if you wish to view complete error

https://signl.uk/login

email - [email protected]

Password - Laracast123

you will see Project called ( test Project ) and within that the Document tab with summernote editor which is where problem is