Server or php code issue

i've got some issues as attached images;

when i click one button , which connect to the other database server ;

it resulted with 502 gateway errors;

how to check it , if it's server errors or code error or database error?

Skills: PHP, Software Architecture, Software Development, Ubuntu, VPS

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About the Employer:
( 12 reviews ) Valenzuela, Philippines

Project ID: #15361023

29 freelancers are bidding on average $24 for this job


hello.... sir i am available anytime to chat with you i understand your need you got 502error yes definetly wd solve your problem. We have an expert team in wordpress and PHP , Codeigniter etc... we are well known for More

$46 USD in 1 day
(129 Reviews)

Hello sir, I can help you in resolving the issue. I have 8 years of experience in the same field will do the task. thanks Relevant Skills and Experience web hosting, aws, linux Proposed Milestones $20 USD - 502 error More

$20 USD in 1 day
(109 Reviews)

Hello! My name is Nick and I will be happy to assist. Im a certified Linux System Administrator and have solid experience in nginx troubleshooting. It appears you have a nginx issue with either a PHP-FPM or PHP More

$40 USD in 0 days
(78 Reviews)

I have more than 4 years experience in bug fixing I will fix your 502 gateway error quickly we can talk more over chat. Relevant Skills and Experience PHP,MYSQL Proposed Milestones $25 USD - milestone payment

$25 USD in 1 day
(83 Reviews)

Hello i can check what the error is and i will fix it soon

$20 USD in 0 days
(160 Reviews)

Hello! I have expreince in server managing and will be very happy to debug your error 502 and fix on your site right now. Thanks! Relevant Skills and Experience Have Linux skills such as (Nginx, Apache, php-fpm, my More

$30 USD in 1 day
(147 Reviews)

I can help you. Usually there is log files in the server that display the error. Or you can handle the code so the error is displayed in the browser. There are several ways.

$42 USD in 1 day
(28 Reviews)

HI! Sir i m interested to fix your server issues once contact me i will start work immediately and complete it as your requirement thank you i m waiting for your reply thanks Relevant Skills and Experience I have 7+y More

$10 USD in 1 day
(77 Reviews)

Hi I have 3 years of experience as linux admin . I will audit your current configuration and find out what exactly issue is . feel free to discus more thanks Relevant Skills and Experience Server admin Proposed Mi More

$25 USD in 1 day
(40 Reviews)

Hello, I am Vikrant, full time freelancer . After reviewing your project, I’d love to discuss in more detail with you to ultimately understand your needs more. Relevant Skills and Experience HTML CSS JAVASCRIPT and j More

$13 USD in 0 days
(49 Reviews)

Five star technlogies passion Relevant Skills and Experience i have 7 years experience with your project flow Proposed Milestones $25 USD - work Hi sir can you please come for the chat box so we can easily discuss a More

$25 USD in 0 days
(15 Reviews)

Hello, greetings. 17 Years of experience in IT. I have read your project and can provide you the solution. Lets chat. Thank you!!! Relevant Skills and Experience whm Proposed Milestones $25 USD - FLA

$25 USD in 1 day
(38 Reviews)

Hi, I'm a PHP Web developer. After reading your job description, I think the job is best suited to me. I'm free and I can start working right now. Shahriar Relevant Skills and Experience Currently I am working on More

$10 USD in 1 day
(35 Reviews)

I am Red Hat Certified Linux Engineer and having 5+ year of experience in Managing Core Server | Dedicated Server | VPS Server. I can help you in resolving 502 gateway errors. Relevant Skills and Experience WHM/cPanel More

$15 USD in 1 day
(16 Reviews)

I will review php log files and debug your code to know issue source and solving it Relevant Skills and Experience Full Stack web developer with 5 years experience with PHP, Wordpress, HTML, CSS, Magento , WooCommerce More

$25 USD in 1 day
(15 Reviews)

Fix the error on your site. Relevant Skills and Experience Hi, This is Jorden. I have hands on PHP/Frameworks & OpenSource CMS/eCommerce platforms. You can get further information on my profile. Proposed Milestones More

$40 USD in 0 days
(18 Reviews)

Hello I am system and network administrator, with more than 10 years of experience. Unfortunately I cannot say much here because of character count restriction Regards Eduard Relevant Skills and Experience Linux, More

$50 USD in 1 day
(6 Reviews)

Hello,Hope you doing well.I read your project description,Lets have a technical discussion,negotiate costing, timeline and then we proceed further. I Will show my past work also. Thanks! Relevant Skills and Experienc More

$28 USD in 1 day
(3 Reviews)

Hi, We will check and resolve the database connection error and resolve 500 gateway error. Thank you. Relevant Skills and Experience We have more than 5 years experience in this field Proposed Milestones $20 USD - W More

$20 USD in 0 days
(12 Reviews)

I am specializing in web development, web design and app expert.. We offer a wide range of experience & expertise. We provide these services to offshore clients across the globe. experience in web application develop More

$20 USD in 1 day
(7 Reviews)