Deprecated ERRORs without end

query-monitor.js:403 
 
{key: 'a81a726c4003f34455610426f0eccf16', type: 'deprecated', message: 'Use of "parent" in callables is deprecated', file: 'wp-content/plugins/simple-lightbox/includes/class.options.php', line: 501, …}
component
: 
"Plugin: simple-lightbox"
file
: 
"wp-content/plugins/simple-lightbox/includes/class.options.php"
key
: 
"a81a726c4003f34455610426f0eccf16"
line
: 
501
message
: 
"Use of \"parent\" in callables is deprecated"
stack
: 
(11) ['SLB_Options->add()', 'SLB_Field_Collection->add_items()', 'SLB_Field_Collection->load()', 'SLB_Base->_set_options()', 'SLB_Lightbox->_options()', 'SLB_Base->_init()', 'SLB_Lightbox->_init()', 'SLB_Base->__construct()', 'SLB_Lightbox->__construct()', 'slb_init()', "do_action('init')"]
type
: 
"deprecated"
[[Prototype]]
: 
Object

1. Object
   1. component: “Plugin: simple-lightbox”
   2. file: “wp-content/plugins/simple-lightbox/includes/class.options.php”
   3. key: “a81a726c4003f34455610426f0eccf16”
   4. line: 501
   5. message: “Use of \”parent\” in callables is deprecated”
   6. stack: (11) [‘SLB_Options->add()’, ‘SLB_Field_Collection->add_items()’, ‘SLB_Field_Collection->load()’, ‘SLB_Base->_set_options()’, ‘SLB_Lightbox->_options()’, ‘SLB_Base->_init()’, ‘SLB_Lightbox->_init()’, ‘SLB_Base->__construct()’, ‘SLB_Lightbox->__construct()’, ‘slb_init()’, “do_action(‘init’)”]
   7. type: “deprecated”
   8. Prototype: Object