Employers have access to a function to restrict applications by the following items.
By updating your profile you will be able to apply to the job.
In case you have mistakenly set your Japanese level lower than intended and the employer set Minimum Japanese Level to "Business level", you may want to update your Japanese Level to "Business level".
It is discouraged to update your profile, if you don't fullfil the requirements.
This would create issues for the employer as well as give you a negative experience in the future.