script errors public_html…wp-scripts.php

I have noticed 2 script errors on my site within the .php files but can’t see why they’re occurring. The first appears at the bottom of my wordpress admin page:

Notice: Array to string conversion in /home/orkwine/public_html/test/wp-includes/class.wp-scripts.php on line 123

This is the area in that file:

`$srce = apply_filters( ‘script_loader_src’, $src, $handle );
if ( $this->in_default_dir($srce) ) {
$this->print_code .= $this->print_extra_script( $handle, false );
$this->concat .= “$handle,”;
$this->concat_version .= “$handle$ver”;
return true;
} else {
$this->ext_handles .= “$handle,”;
$this->ext_version .= “$handle$ver”;
}
}`
Line 123 is:

$this->ext_version .= "$handle$ver";
The other error i am getting is:

Notice: Undefined index: prettyPhoto in /home/orkwine/public_html/test/wp-includes/class.wp-scripts.php on line 185

Notice: Trying to get property of non-object in /home/orkwine/public_html/test/wp-includes/class.wp-scripts.php on line 185

These are lines 183-194 in that file:` function set_group( $handle, $recursion, $group = false ) {

if ( $this->registered[$handle]->args === 1 )
$grp = 1;
else
$grp = (int) $this->get_data( $handle, ‘group’ );

if ( false !== $group && $grp > $group )
$grp = $group;

return parent::set_group( $handle, $recursion, $grp );
}`
Line 185 is:

if ( $this->registered[$handle]->args === 1 )
Can anyone help solve these errors?

The full file can be seen here:
https://pastebin.com/spBAhuHf