multiple errors showing on post backend page

I have multiple errors showing on the backend of my blog:

Warning: Illegal string offset 'icon' in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 615

Warning: Cannot assign an empty string to a string offset in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 615

Warning: Illegal string offset 'action' in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 616

Warning: Cannot assign an empty string to a string offset in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 616

Warning: Illegal string offset 'title' in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 617

Warning: array_merge(): Argument #2 is not an array in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 620

Warning: array_key_exists() expects parameter 2 to be array, null given in /home/itbilinguals/public_html/components/com_jce/editor/libraries/classes/browser.php on line 623

Please help me fix this.