Firstly, backup sql.lib.php before editing.
sudo cp /usr/share/phpmyadmin/libraries/sql.lib.php /usr/share/phpmyadmin/libraries/sql.lib.php.bak
Edit sql.lib.php in nano.
sudo nano /usr/share/phpmyadmin/libraries/sql.lib.php
Press CTRL + W and search for (count($analyzed_sql_results[‘select_expr’] == 1)
Replace it with ((count($analyzed_sql_results[‘select_expr’]) == 1)
Save file and exit. (Press CTRL + X, press Y and then press ENTER)