How to debug a warning message?

[izacksher]

Followiing is a warning that I get in my Wordpress site.

Has anyone any idea how to debug it?

( ! ) Warning: call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-includes\class-wp-hook.php on line 298

Call Stack

#

Time

Memory

Function

Location

1

0.2010

132936

{main}( )

..\index.php:0

2

0.2010

134936

require( 'C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-blog-header.php' )

..\index.php:17

3

1.8401

46122240

require_once( 'C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-includes\template-loader.php' )

..\wp-blog-header.php:19

4

1.8531

46261480

include( 'C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-content\themes\buzz\woocommerce.php' )

..\template-loader.php:74

5

2.7272

46928296

woocommerce_content( )

..\woocommerce.php:21

6

2.7292

46942352

wc_get_template_part( )

..\wc-template-functions.php:358

7

2.7292

46942552

load_template( )

..\wc-core-functions.php:173

8

2.7302

46955928

require( 'C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-content\plugins\woocommerce\templates\content-single-product.php' )

..\template.php:686

9

2.7482

46958480

do_action( )

..\content-single-product.php:48

10

2.7482

46958928

WP_Hook->do_action( )

..\plugin.php:453

11

2.7482

46958976

WP_Hook->apply_filters( )

..\class-wp-hook.php:323

12

2.7482

46959560

call_user_func_array:{C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-includes\class-wp-hook.php:298} ( )

..\class-wp-hook.php:298

Variables in local scope (#11)

$args =

array (size=1)

  0 => string '' (length=0)

$nesting_level =

int 0

$num_args =

int 1

$priority =

int 10

$the_ =

array (size=2)

  'function' => null

  'accepted_args' => int 1

$value =

string '' (length=0)

 

 

[NotionCommotion]

It appears that call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in C:\AAAA WEB MASTER\webroot\rihut-mashlim\wp-includes\class-wp-hook.php on line 298.

 

PS.  Wrapping your code in the code tags is a nice thing to do.