Slide In Global Settings Issue

After adjusting the global settings as per requirement, i try to save and get this error:
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Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Illegal string offset 'code' in /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php on line 184

Warning: Cannot modify header information - headers already sent by (output started at /home/android/public_html/wp-content/plugins/slide-in/lib/class_wdsi_admin_pages.php:184) in /home/android/public_html/wp-includes/pluggable.php on line 875
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Thanks for your time.
regards
Shristy