Warning: array_key_exists() expects parameter 2 to be array, boolean given

On PHP 7.3, I get the above warning in dublin-core-metadata-generator/dcmg_metadata.php on both line 167 and line 400.

The solution on line 167 seems to be to change this:
`
array_key_exists( ‘dublincore_metadata_generator_image_format’, $options ) ?
`
to this:
`
is_array( $options ) && array_key_exists( ‘dublincore_metadata_generator_image_format’, $options ) ?
`
and, on line 400, change this:
`
array_key_exists( ‘dublincore_metadata_generator_cleanyoast’, $options ) ?
`
to this:
`
is_array( $options ) && array_key_exists( ‘dublincore_metadata_generator_cleanyoast’, $options ) ?
`