Website migrations and Wordpress CMS tasks

I need various tasks on 3 wordpress websites, see below. This work needs to be done within 4 days max of awarding the job.

1) Move two websites from Pro package to Cloud server package including all content. And:

a) Update all plugins, wordpress and theme but make sure there won't be issues first, especially with them updates as not sure if it's the child theme that is being used.

b) One one website move the sidebar widget bottom left 'Secondary Sidebar Widget Area. This is the Secondary Sidebar Widget Area. You can add content to this area by visiting your Widgets Panel and adding new widgets to this area.'

c) Add the free SSL certificate from my hosting account on both websites

2) WEBSITE 3:

a) Improve site speed so the Speed and Yslow scores in GTMetrix are in the 90%s, at present the site is very slow

b) Sort FILTER BY CBD AMOUNT so it starts with the lowest amount and goes up in order, at present it is all mixed up.

c) Get the newsletter form working in promo popup : create and add a new optin form (see dashboard for Optin forms), form must be linked to the list called hempoilhub in Mailchimp (Mailchimp is in Dashboard).

d) Make blog image sizes the same when added to a post edit page. See homepage - you will see two sizes of blog posts.

e) Make image smaller when on single post page - it is too big.

f) One category is missing in the Shop banner and needs to be added into banner (all other categories are shown) - I will confirm which one is missing if you need it, but you will be able to work it out.

g) On checkout page this message is shown: "Have a coupon? Click here to enter your code. " But the coupon code needs to be a field like other fields during the checkout process (I have seen this on the site) but for some reason the line with the link for the coupon keeps coming.

h) Fix this error: "Notice: Trying to get property of non-object in /var/www/vhosts/hempoilhub.com/httpdocs/wp-content/plugins/sbi-for-wp/includes/controller/metaboxes.class.php on line 35 "

i) Make it View Basket button, not View Cart

j) These errors are showing in the woocommerce PDF invoice link (in Orders), the PDF invoice for woocommerce plugin needs sorting.

Notice: Undefined offset: 0 in /var/www/vhosts/hempoilhub.com/httpdocs/wpcontent/plugins/rewardsystem/includes/woocommerce-pdf-invoices-packing-slips.php on line 23 Warning: array_keys() expects parameter 1 to be array, null given in /var/www/vhosts/hempoilhub.com/httpdocs/wp-content/plugins/rewardsystem/includes/woocommercepdf-invoices-packing-slips.php on line 23 Notice: Undefined offset: 0 in /var/www/vhosts/hempoilhub.com/httpdocs/wpcontent/plugins/rewardsystem/includes/woocommerce-pdf-invoices-packing-slips.php on line 24 Warning: array_values() expects parameter 1 to be array, null given in /var/www/vhosts/hempoilhub.com/httpdocs/wp-content/plugins/rewardsystem/includes/woocommercepdf-invoices-packing-slips.php on line 24