Slim Application Error

The application could not run because of the following error:

Details

Type: ErrorException
Code: 2
Message: array_merge(): Argument #1 is not an array
File: /home/snjmg.org/public_html/core/lib/class.p9cms_blog.php
Line: 386

Trace

#0 [internal function]: Slim\Slim::handleErrors(2, 'array_merge(): ...', '/home/snjmg.org...', 386, Array)
#1 /home/snjmg.org/public_html/core/lib/class.p9cms_blog.php(386): array_merge(false, Array)
#2 /home/snjmg.org/public_html/core/lib/class.p9cms_blog.php(201): p9cms_blog->expand_post(false)
#3 /home/snjmg.org/public_html/core/lib/class.p9cms_blog.php(54): p9cms_blog->view_post('1788')
#4 [internal function]: {closure}('1788')
#5 /home/snjmg.org/public_html/core/lib/vendors/Slim/Route.php(462): call_user_func_array(Object(Closure), Array)
#6 /home/snjmg.org/public_html/core/lib/vendors/Slim/Slim.php(1326): Slim\Route->dispatch()
#7 /home/snjmg.org/public_html/core/lib/vendors/Slim/Middleware/Flash.php(85): Slim\Slim->call()
#8 /home/snjmg.org/public_html/core/lib/vendors/Slim/Middleware/MethodOverride.php(92): Slim\Middleware\Flash->call()
#9 /home/snjmg.org/public_html/core/lib/vendors/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#10 /home/snjmg.org/public_html/core/lib/vendors/Slim/Slim.php(1271): Slim\Middleware\PrettyExceptions->call()
#11 /home/snjmg.org/public_html/router.php(915): Slim\Slim->run()
#12 {main}