Databse can not update files missing error?

I am getting an error on the database when trying to update a change using the database manager.

I get this error?

I have not idea what is going on. I can edit via Navicat just fine. I assume it is something to do with a file whihc is generated when you add the database.

I wanted to start using the database manager HELP

missing files784×334 56.1 KB

The migration file contents:

exports.up = function(knex) {
  return knex.schema
    .table('Account', function (table) {
      table.datetime('expiry').notNullable().alter();
    })
};

exports.down = function(knex) {
  return knex.schema
    .table('Account', function (table) {
      table.datetime('expiry').nullable().alter();
    })
};