Frontside category issue (Notice: Trying to access array offset on value of type null)

[Pragati P]

I had created the new category from admin panel but when i try to access it from frontside it gives the below error can any one help me for solution.

[endriu107]

Turn off debug mode.

[Pragati P]

  On 11/11/2022 at 7:41 AM, endriu107 said:

Turn off debug mode.

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if off the debug mode it throughs the another issue below is screen shot site gets failed

Edited November 11, 2022 by Pragati P (see edit history)

[Mediacom87]

Hi,

have you tried to clear PrestaShop's cache manually?

https://www.mediacom87.fr/en/faq-how-to-clear-the-cache-manually-on-prestashop-17/

[Pragati P]

YEs 

  On 11/11/2022 at 8:07 PM, Mediacom87 said:

Hi,

have you tried to clear PrestaShop's cache manually?

https://www.mediacom87.fr/en/faq-how-to-clear-the-cache-manually-on-prestashop-17/

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Thanks for your reply,

I have tried the above solution when I delete the dev and prod folder site works fine but again that folder are created so every time I need to delete this folder when I faced issue like above?

[Mediacom87]

  On 11/14/2022 at 5:10 AM, Pragati P said:

I have tried the above solution when I delete the dev and prod folder site works fine but again that folder are created so every time I need to delete this folder when I faced issue like above?

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It is normal that this folder is created, it is the normal functioning of PrestaShop, it corresponds to the cache of PrestaShop, we force its deletion when there is an inconsistency in the data.

[Pragati P]

  On 11/14/2022 at 8:39 AM, Mediacom87 said:

It is normal that this folder is created, it is the normal functioning of PrestaShop, it corresponds to the cache of PrestaShop, we force its deletion when there is an inconsistency in the data.

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but again and again facing this issue 

[Mediacom87]

So, you have a problem on your theme concerning the category.tpl page

[Pragati P]

  On 11/15/2022 at 7:10 PM, Mediacom87 said:

So, you have a problem on your theme concerning the category.tpl page

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Now its working fine, i had disabled the debugging mode and deleted the dev and prod folder from var/cache

[Mediacom87]

  On 11/17/2022 at 5:17 AM, Pragati P said:

Now its working fine, i had disabled the debugging mode and deleted the dev and prod folder from var/cache

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You have hidden the error, but it is still there.

[Pragati P]

  On 11/17/2022 at 7:46 AM, Mediacom87 said:

You have hidden the error, but it is still there.

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What's the solution for this ?

[Mediacom87]

  On 11/17/2022 at 9:41 AM, Pragati P said:

What's the solution for this ?

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It is enough to correct the displayed error, for that, it is necessary to analyze the code in question to bring the adapted solution, there, one has only the error, not the code causing the error.

But often, the solution is to apply an isset() to the called variable to check that it exists before trying to process it.