When I call isClosed - Githubissues

Hello, When i call $date->isClosed() this exception occurs

 "titulo:Class name must be a valid object or a string",
        "codigo:0",
        "linea: 147",
        "exception:Error",
        [
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/cmixin/business-time/src/BusinessTime/DefinitionParser.php",
                "line": 203,
                "function": "BusinessTime\\{closure}",
                "class": "BusinessTime\\MixinBase",
                "type": "::"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/spatie/opening-hours/src/OpeningHours.php",
                "line": 254,
                "function": "BusinessTime\\{closure}",
                "class": "BusinessTime\\DefinitionParser",
                "type": "->"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/spatie/opening-hours/src/OpeningHours.php",
                "line": 313,
                "function": "forDate",
                "class": "Spatie\\OpeningHours\\OpeningHours",
                "type": "->"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/spatie/opening-hours/src/OpeningHours.php",
                "line": 320,
                "function": "isOpenAt",
                "class": "Spatie\\OpeningHours\\OpeningHours",
                "type": "->"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/cmixin/business-time/src/BusinessTime/Traits/IsMethods.php",
                "line": 70,
                "function": "isClosedAt",
                "class": "Spatie\\OpeningHours\\OpeningHours",
                "type": "->"
            },
            {
                "function": "BusinessTime\\Traits\\{closure}",
                "class": "Illuminate\\Support\\Carbon",
                "type": "->"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/nesbot/carbon/src/Carbon/Traits/Date.php",
                "line": 2413,
                "function": "call_user_func_array"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/nesbot/carbon/src/Carbon/Traits/Date.php",
                "line": 2608,
                "function": "executeCallable",
                "class": "Carbon\\Carbon",
                "type": "->"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/nesbot/carbon/src/Carbon/Traits/Mixin.php",
                "line": 140,
                "function": "Carbon\\Traits\\{closure}",
                "class": "Carbon\\Carbon",
                "type": "->"
            },
            {
                "file": "/home/juan/Documentos/Trabajo/crm-laravel7/vendor/nesbot/carbon/src/Carbon/Traits/Date.php",
                "line": 2609,
                "function": "bindMacroContext",
                "class": "Carbon\\Carbon",
                "type": "::"
            },

name     : cmixin/business-time
descrip. : Carbon mixin to handle business days and opening hours
keywords : 
versions : * 1.9.0
type     : library
license  : MIT License (MIT) (OSI approved) https://spdx.org/licenses/MIT.html#licenseText
homepage : 
source   : [git] https://github.com/kylekatarnls/business-time.git a881d5084974d86052227f78cf2b5007bc2fa1c1
dist     : [zip] https://api.github.com/repos/kylekatarnls/business-time/zipball/a881d5084974d86052227f78cf2b5007bc2fa1c1 a881d5084974d86052227f78cf2b5007bc2fa1c1
path     : /home/juan/Documentos/Trabajo/crm-laravel7/vendor/cmixin/business-time
names    : cmixin/business-time

autoload
psr-4
* => src/

requires
cmixin/business-day ^1.1
nesbot/carbon ^2.28
php >=7.1
spatie/opening-hours ^2.9 || ^3@dev

requires (dev)
phpunit/phpunit ^7.0 || ^8.0

kylekatarnls / business-time

When I call isClosed #38